Raynaud's + Warmth

Warmth Chosen With Raynaud's in Mind.

Socks, gloves, and warmth strategies chosen specifically for people with Raynaud's. Tested and endorsed by Raynauds.org, and honest about what the evidence says.

7x
warmer than cotton (tested)
2.30
TOG rating
(ORIGINAL™ socks)
RA
Tested and endorsed
by Raynauds.org

Find your warmth

Three quick questions. One honest recommendation.

What's the warmth challenge?
Where are you coldest?
What do you need your hands free for?
Who are you shopping for?
What do they struggle with most?
Who are you shopping for?
Our recommendation

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The Raynaud's Edit

Products chosen for Raynaud's

Non-restrictive warmth across every situation. Every product selected for warmth without squeeze.

Heat Holders Banner with warm pink Original socks warm and cozy on a muskoka couch
At home

ORIGINAL™ Socks

Maximum home warmth. Long-loop thermal pile. 7x warmer than cotton.

2.3 TOG Shop
Lifestyle
At home

Slipper Socks

Same thermal warmth. Non-slip soles for hard floors. Ankle or crew.

7x warmer Shop
In shoes

LITE™ Socks

Same thermal yarn, thinner profile. Fits casual shoes and boots. 5x warmer than cotton.

Lite Shop
Heat Holders® thermal socks
In shoes

ULTRA LITE™ Socks

Thinnest thermal. Dress shoes and work footwear. 3x warmer than cotton.

Ultra Lite Shop
Heat Holders Men's High Performance Thermal Mittens Black #color_black
Hands

Alaska High Performance Mitts

Maximum hand warmth. Fingers share heat. High-performance insulation.

HeatWeaver® Shop
Hands

Ken Converter Gloves

Fingerless with fold-over mitten top. Best of both worlds.

HeatWeaver® Shop
Core warmth

Base Layer Top

Core warmth under clothes. Lightweight.

ULTRA LITE™ Shop
Core warmth

Base Layer Bottoms

Lower body insulation. Mid-weight. Complete your cold-weather outfit

LITE™ Shop
Trusted by people with Raynaud's

Tested and endorsed by Raynauds.org

Heat Holders® socks are tested and endorsed by Raynauds.org, a trusted resource for people living with Raynaud's, offering support, helpful advice, and products that really make a difference. They tested Heat Holders® socks with their members and found benefits that go beyond the softness and warmth.

"Warmest socks I've ever worn."

Raynaud's Association member tester

"Like putting feet into a lovely warm sauna. Helping the whole body stay warm."

Raynaud's Association member tester

The Association was honest about the limitations too: they can't guarantee every person will have the same experience. But the majority of their testers recommended other people with Raynaud's give them a try.

7x
Warmer than cotton. Lab-tested TOG, not a marketing claim.
3
Warmth levels so you can match the sock to the situation.
RA
Tested and endorsed by Raynauds.org.
"Finally warm."
"The only brand I buy."
"A godsend."
"Nothing has worked until I tried these."
"Worth every penny."
"Warmest socks I've ever worn."
"Can't possibly say enough."

Raynaud's Association members receive a discount on Heat Holders® products

Already a member? Find your code on the Association's website. Not a member? Join at raynauds.org

Understanding Raynaud's

What you need to know about Raynaud's and warmth

Select a topic below. Whether you're newly diagnosed or have lived with Raynaud's for years, every section is written for people who want honest, practical answers.

What Raynaud's is

Raynaud's is a condition where the small blood vessels in your hands and feet overreact to cold or stress. When it happens, those vessels tighten more than they need to, cutting blood flow to your fingers, toes, and sometimes your ears or nose.

The result is what most people with Raynaud's know as an "attack." Your skin turns white as blood flow drops. It may turn blue as oxygen runs out. When the vessels finally relax and blood returns, your skin flushes red, and that's often when the pain hits: throbbing, burning, tingling. An attack can last a few minutes or more than an hour.

1

White: blood flow drops

Blood vessels tighten suddenly, cutting supply to your fingers and toes. Skin turns pale and cold.

2

Blue: not enough oxygen

With reduced blood flow, the oxygen in the tissue runs low. Skin may turn blue or gray.

3

Red: blood returns

Vessels relax and blood rushes back. This is often the most painful phase: throbbing, burning, swelling.

Primary vs secondary Raynaud's

Most people have primary Raynaud's: it happens on its own, without an underlying disease. Estimates suggest it affects between 3 and 10 percent of the US population, according to the National Institutes of Health, is considerably more common in women, and often starts in the teens or twenties.

A smaller number of people have secondary Raynaud's, connected to autoimmune conditions like scleroderma, lupus, or rheumatoid arthritis. Secondary Raynaud's tends to be more severe and needs closer medical care.

Not sure if you have Raynaud's? Toes that turn white after wearing shoes, fingers that go numb in rooms other people find comfortable: if that sounds familiar, a conversation with your doctor is the first step. Getting a diagnosis is usually simple.

What helps: warmth and triggers

There's no cure for Raynaud's. But there's a principle that every condition organization agrees on, from the Raynaud's Association to the Mayo Clinic to the Cleveland Clinic:

Keep your whole body warm. Not just your hands and feet. When your core temperature stays up, your body is less likely to restrict blood flow to your fingers and toes. Fewer attacks, less severe attacks, faster recovery.

The whole-body warmth principle

Warming your hands and feet alone often isn't enough. If your core is cold, your body diverts blood away from your fingers and toes to protect your organs. That's exactly the response that triggers a Raynaud's attack.

Layering is more effective than one heavy garment. Multiple thin layers trap warm air between them. Loose layers work better than tight ones. Anything that squeezes or restricts can reduce the circulation you're trying to protect.

Thermal base layers under your clothes. A hat when it's cold, even indoors. Warm socks before you feel cold, not after. The goal is to keep yourself warm to the point of feeling slightly overdressed, so your circulation stays open rather than shutting down.

Common triggers

1

Cold and temperature changes

The obvious trigger, but sudden shifts matter too: stepping from heat into air conditioning, reaching into a freezer, holding an iced drink. Many people learn to keep a light layer handy year-round.

2

Stress and anxiety

The same fight-or-flight response that tightens blood vessels under threat can set off an episode in someone whose vessels already overreact.

3

Caffeine and smoking

Caffeine constricts blood vessels. Smoking constricts them further. Neither causes Raynaud's, but both can increase attack frequency and severity.

When warmth isn't enough

For some people, particularly those with secondary Raynaud's, self-care and clothing alone don't provide enough relief. Medications that relax blood vessels exist and can make a meaningful difference. That's a conversation between you and your doctor. The warmth strategies here work alongside medical treatment, not instead of it.

Choosing socks for Raynaud's

The right sock depends on the situation. The warmest sock we make is too thick for most shoes. A sock that fits in a sneaker won't be warm enough for a January morning at home. Here's how to match the sock to the situation.

What makes a sock right for Raynaud's

Warmth, measured in TOG. Thermal Overall Grade: a lab-tested measure of how well fabric holds heat. Cotton scores about 0.3 TOG. Our ORIGINAL™ socks are 2.30 TOG, roughly 7 times warmer.

Fit that doesn't restrict. Every condition organization recommends non-restrictive clothing. Elastic that digs in, a cuff that leaves marks, a toe box that squeezes: any of these can reduce the circulation you're trying to protect.

Not cotton. Cotton absorbs moisture and holds it against your skin. A damp sock cools your foot instead of warming it. Look for thermal yarns, acrylic blends, wool, or synthetics that manage moisture.

At home: maximum warmth

2.30TOG

ORIGINAL™ Socks

7x warmer than cotton. Long-loop thermal pile holds warm air close to your skin. The sock most Raynaud's customers start with.

7xwarmer

Slipper Socks

Same thermal warmth as the ORIGINAL™, with non-slip soles. Available in ankle and crew. If you're on hard floors - hardwood, tile, stone - these stop heat loss from underneath as well as insulating from above.

Honest trade-off: they're thick. Best suited to indoor use or extra-roomy footwear.

In shoes: the question everyone asks

Lite

LITE™ Socks

Same thermal yarn, thinner profile. Fits comfortably in most casual shoes and boots. 5x warmer than cotton. You trade some warmth for wearability.

Ultra

ULTRA LITE™ Socks

Thinnest thermal. Designed for dress shoes and work footwear. 3x warmer than cotton. Meaningfully warmer than a regular sock, and it fits in shoes you actually wear.

Outdoors and extreme cold

Layer socks the way you layer clothing: a thinner thermal base, an ORIGINAL™ over the top. The gap between layers traps extra warm air. Pair with insulated, roomy boots. Disposable toe warmers between layers add targeted heat on the coldest days.

In bed

Nighttime Raynaud's attacks are common. Wearing socks to bed reduces the chance of waking up with numb, painful toes. Choose something soft and non-restrictive. ORIGINAL™ socks work. ORIGINAL™ Sleep Socks (Feather Top, Feather Cuff, Rib Cuff) offer 2.30 TOG warmth in softer constructions designed specifically for sleeping. The Serena and Samara sleep socks are LITE™ weight (5x warmer than cotton) for a lighter feel. Thermal pajamas help too.

For kids

"My daughter suffers from raynauds and I have purchased $500 dollar heated socks that did not help. These socks are amazing the only thing that has helped her feet ever!!!"

Susan, Women's Camellia ORIGINAL™ Crew Socks, October 2018

For children, sizing matters. Size with room for growth so the fit stays non-restrictive.

ORIGINAL socksLITE socksULTRA LITE socksSlipper socksSleep socks

Gloves, mittens, and the dexterity trade-off

Every condition guide recommends mittens over gloves when maximum warmth is the priority. Your fingers share heat inside a mitten. In gloves, each finger is isolated in its own pocket, losing heat independently.

By dexterity need

1

Full mittens: maximum warmth

Walking, commuting, spectating. Men's: Alaska High Performance Mitts. Women's: Jackie Mittens (HeatWeaver® lined, 7 colors) or Sierra Performance Mittens. Kids': Majestic Explorer Mittens, Ice Palace Mittens, Snowday Performance Mittens.

2

Converter gloves: best of both

Fingerless with a fold-over mitten top. Men's: Ken Converter. Women's: Melinda Cable Knit or Vienna Fairisle Converter Mittens. Warmth when idle, finger access when you need it.

3

Lined gloves: full dexterity

Driving, errands, constant grip. Men's: Torridon (HeatWeaver® lined). Women's: Carina Flat Knit or Judith Fairisle (HeatWeaver® lined). Won't match mittens for warmth, but outperforms unlined gloves by a wide margin.

4

Fingerless gloves: indoor use

Cold office, typing, desk work. Men's: Fingerless Gloves. Women's: Ayla Cable Knit Fingerless (4 colors). Keeping wrists warm helps maintain blood flow to fingertips, even with fingers exposed.

Most people with Raynaud's build a small rotation: mittens for the coldest days, converters for moderate cold, lined gloves for the in-between.

All gloves and mittensMen'sWomen'sKids'

The compression question

You may have read that compression socks help with Raynaud's. If you've searched for socks for the condition, you've almost certainly seen it: confident recommendations from companies that sell compression products, suggesting graduated compression improves blood flow and reduces attacks.

Here's the honest answer.

Compression garments are designed to support venous return: blood in your veins traveling back up toward your heart. They're well established for chronic venous insufficiency, varicose veins, and DVT. The evidence for that use is solid.

Raynaud's is a different mechanism. It's an arterial problem: the small arteries in your fingers and toes spasming shut in response to cold or stress. That's not a venous return issue.

What the condition organizations actually recommend: warm, loose, non-restrictive clothing. The Raynaud's Association says it. The Mayo Clinic says it. The Cleveland Clinic says it. None of them recommend compression as a Raynaud's management strategy.

Does that mean compression socks can't work for anyone with Raynaud's? No. Some individuals report personal benefit, and that's worth discussing with your doctor. A clinician can assess whether compression makes sense for your specific situation, especially if you have other circulatory conditions alongside Raynaud's.

But the generalized advice you'll find elsewhere, that compression socks are a proven solution for Raynaud's, isn't supported by the body of clinical guidance.

For what it's worth, we don't sell compression products, so we have no stake in the answer. What we can speak to is warmth: serious, measurable warmth with a fit that doesn't squeeze or restrict. That's what the evidence supports.

Thermal socks vs heated socks

This is a fair question, and we'd rather answer it honestly than pretend the alternative doesn't exist.

T

Thermal socks (passive insulation)

Trap your body's own heat using insulating materials. No batteries, no charging, no wires. You put them on and they work all day. The limitation: during a severe attack, when blood flow drops and heat production drops, insulation has less to work with.

H

Heated socks (active warming)

Generate warmth via battery-powered heating elements. Can add heat your body isn't producing. Trade-offs: bulkier, require charging (3 to 8 hours), more expensive, bulk limits shoe options.

For most people with Raynaud's managing daily life, at home, at work, running errands, high-quality thermal insulation is the practical everyday answer. It works without thinking about it.

For severe Raynaud's in extreme cold, or for extended outdoor exposure where passive insulation reaches its limit, heated socks have a genuine role.

Some people use both: heated socks for outdoor activity in winter, thermal socks for everything else. That's a reasonable approach.

Footwear: shoes and boots for Raynaud's

The right sock matters, but the shoe or boot around it matters too. Tight footwear compresses the sock, restricts circulation, and undoes the warmth you're trying to build. This is one of the most searched topics among people with Raynaud's, and the answer starts with three principles.

1

Roomy enough for thermal socks

Size up by half a size when buying new shoes or boots. The Raynaud's Association recommends the same: boots a little larger than your normal size, so you have room for thermal socks without compression. If your shoes leave marks or squeeze after a day's wear with thermal socks, they're too tight.

2

Insulated and waterproof

For winter boots, look for insulated linings and waterproof shells. Wet cold is worse than dry cold. Avoid fashion boots with thin soles and tight shafts: they look warm but often aren't.

3

Avoid tight ankle openings

Tight boot shafts act like a tourniquet on compromised circulation. Look for boots with a generous opening that doesn't compress the sock at the calf.

Matching socks to footwear

ORIGINAL™ socks (2.30 TOG) pair best with insulated boots or roomy casual footwear. LITE™ socks fit casual shoes and standard boots. ULTRA LITE™ socks fit dress shoes and work footwear. The trade-off is always warmth vs profile: thinner fits more shoes, thicker keeps feet warmer.

Indoor footwear

Slipper socks with non-slip soles are the indoor answer. Hardwood and tile floors conduct heat away from your feet rapidly. Non-slip grips add safety, especially for anyone less steady on their feet.

When to talk to your doctor

Warmth is self-care. Diagnosis and medication are medical conversations. This page can help with the first; your doctor handles the second.

If you think you might have Raynaud's

A diagnosis is usually simple. Your doctor will want to know:

1

When symptoms started

Raynaud's often begins in the teens or twenties for primary, later for secondary. The timeline helps your doctor assess which type.

2

Which fingers, toes, or other areas are affected

Fingers, toes, nose, ears. Whether one side or both. Whether it has changed over time.

3

How often attacks happen

Daily, weekly, seasonal. And what seems to trigger them: cold, stress, specific situations.

4

Family history

Many people with primary Raynaud's have a family history of the condition.

If you're already diagnosed

For people whose symptoms aren't managed well enough by warmth alone, medications that relax blood vessels can help. If your Raynaud's is connected to an autoimmune condition, your rheumatologist may adjust treatment. The strategies on this page work alongside medication, not instead of it.

We're a warmth brand, not a clinic. We can help with the warmth part. For diagnosis, treatment, and medication, your doctor is the right conversation.

Common questions

Raynaud's and warmth FAQ

They can, and the reason is simple. Raynaud's is a condition where the small arteries in your hands and feet tighten too much. Anything that adds external compression on top of that internal tightening further reduces blood flow. Tight elastic around the calf or ankle, a cuff that leaves deep indentation marks, or a compressed toe box all apply pressure to blood vessels that are already struggling to stay open. If your socks leave red marks when you remove them, they're too tight for anyone - and actively counterproductive for someone with Raynaud's. Every major condition organization (the Raynaud's Association, Mayo Clinic, Cleveland Clinic) specifically recommends non-restrictive clothing, and that starts with the socks. Look for socks labeled "non-binding" or "comfort fit." The goal is warmth without squeeze: enough structure to stay up, enough give that you never feel pressure.
The clinical consensus doesn't support compression for Raynaud's, and the reason comes down to which blood vessels are involved. Compression garments are designed to support venous return - blood in your veins traveling back up toward your heart. They work by applying graduated pressure that helps push blood against gravity. This is well established for conditions like chronic venous insufficiency, varicose veins, and DVT prevention. Raynaud's is a completely different mechanism. It's an arterial problem: the small arteries in your fingers and toes spasming shut in response to cold or stress. Adding compression on top of arteries that are already clamping down risks making the constriction worse, not better. The Raynaud's Association, Mayo Clinic, and Cleveland Clinic all recommend warm, loose, non-restrictive clothing - essentially the opposite of compression. Some individuals report personal benefit from compression, and if you have both Raynaud's and a venous condition, your doctor may recommend compression for the venous problem alongside warmth for the Raynaud's. That's a clinical conversation, not a sock-shopping decision. The generalized advice you'll find on some competitor websites - that compression socks are a proven solution for Raynaud's - isn't supported by the body of clinical guidance.
TOG stands for Thermal Overall Grade - a lab-tested measure of how effectively a fabric retains heat. It's not a marketing term: it's a standardized test where a heated plate measures how much warmth passes through the fabric. Higher TOG means less heat escapes, which means warmer feet. A standard cotton sock scores about 0.3 TOG. Our ORIGINAL™ socks score 2.30 TOG - roughly 7 times warmer. LITE™ socks are 5 times warmer than cotton, and ULTRA LITE™ are 3 times warmer. The right TOG depends on the situation. For home, sleeping, and outdoor cold, start with the highest TOG you can: ORIGINAL™ at 2.30. For shoes that need to fit normally, step down to LITE™ (fits most casual shoes and boots) or ULTRA LITE™ (fits dress shoes and work footwear). The trade-off is always warmth versus profile - thicker socks are warmer, thinner socks fit more shoes. For Raynaud's specifically, err toward warmer. You can always take a sock off if you're too warm; you can't add warmth you don't have when an attack starts.
Yes, if cold feet wake you up or trigger nighttime attacks - and nighttime attacks are one of the most common complaints among people with Raynaud's. Your core body temperature drops naturally during sleep, and for someone with Raynaud's, that drop can be enough to trigger the same vasospasm that happens in cold weather. Wearing warm socks to bed helps maintain foot temperature through the night, reducing the chance of waking to numb, painful toes. Choose something soft, warm, and non-restrictive. You don't need grip soles in bed - grip soles add bulk without benefit when you're lying down. Dedicated sleep socks (like the Feather Top or Feather Cuff) are designed specifically for comfort during sleep: same warmth as ORIGINAL™ socks (2.30 TOG, 7 times warmer than cotton) but with softer finishing and decorative details. Thermal pajamas help too, and for the same reason: keeping your core warm through the night means your body is less likely to restrict blood flow to your feet. A warm core and warm socks together address the problem from both directions.
Yes, and the reason is surface area. In a glove, each finger is isolated in its own pocket of fabric. Each finger has a high surface-area-to-volume ratio, meaning it loses heat quickly relative to how much heat it produces. In a mitten, all four fingers share a single chamber. They pool their body heat together, and the shared space has a lower surface-area-to-volume ratio - meaning less heat escapes per unit of warmth generated. For Raynaud's, where the blood supply to your fingers is already compromised, this difference matters. Mittens give your fingers the best chance of staying warm. The trade-off is dexterity: you can't type, use a phone, handle keys, or drive in full mittens. That's where converter gloves come in - fingerless with a fold-over mitten top, so you get mitten warmth when your hands are idle and finger access when you need it. Most people with Raynaud's build a rotation: full mittens for the coldest conditions, converter gloves for moderate cold and occasional tasks, and lined gloves for driving and errands.
Yes. Primary Raynaud's often starts in the teens, but children as young as five or six can be affected. The management principles are the same as for adults: keep the whole body warm, layer loose clothing, use thermal socks and mittens (mittens rather than gloves for younger children - easier to put on and warmer). For children specifically, sizing matters more than it does for adults. Children grow fast, and socks that fit well in September may be compressing by January. Tight socks reduce circulation - the opposite of what you need. Size with room for growth so the fit stays non-restrictive. If your child's attacks are frequent, severe, or not improving with warmth strategies, their doctor should know. Some children respond well to self-care alone; others need clinical support alongside it.
No, and the distinction matters because the management strategies are different. Raynaud's is vasospasm: the small arteries in your fingers and toes constricting suddenly and excessively in response to cold or stress. It's an overreaction of the arterial system. The blood vessels themselves are typically healthy - they just respond too aggressively. "Poor circulation" usually refers to something else entirely: chronic venous insufficiency (where veins struggle to push blood back to the heart), peripheral artery disease (where arteries are narrowed by plaque buildup), or general sluggish blood flow from inactivity or other causes. Compression socks help with venous problems because they assist the veins in returning blood upward. For Raynaud's, warmth and loose clothing are the recommendations - because the arteries need to be free to relax, not compressed further. Some people have both Raynaud's and a venous condition, in which case their doctor may recommend both approaches. But treating Raynaud's as if it were "poor circulation" - with compression, with vigorous massage, with tight elastic - can make the problem worse rather than better.
Three principles, in order of importance. First, room for thermal socks. The Raynaud's Association recommends buying shoes and boots half a size larger than your normal size so there's space for thick thermal socks without compression. If your shoes feel tight after a full day with thermal socks, the sock is being compressed - squeezing warmth and circulation out of your foot. Second, insulation. For winter boots, look for insulated linings and waterproof shells. Wet cold penetrates faster than dry cold, and a damp boot liner pulls heat away from your foot. Avoid fashion boots with thin soles and uninsulated shafts - they look warm but often aren't. Third, avoid tight ankle openings. A tight boot shaft acts like a tourniquet on already-compromised circulation. Look for boots with a generous opening that doesn't compress the sock at the calf. For matching socks to shoes: ORIGINAL™ socks (2.30 TOG) pair best with insulated boots and roomy casual footwear. LITE™ socks fit most casual shoes and standard boots. ULTRA LITE™ socks fit dress shoes, heels, and work footwear. Indoors, slipper socks with non-slip grips solve the hard-floor problem - hardwood and tile conduct heat away from your feet faster than carpet.
Yes, and this is the single most important principle for managing Raynaud's - more important than any individual sock or glove. Here's the mechanism: when your body's core temperature drops, it prioritizes keeping your vital organs warm. To do this, it restricts blood flow to your fingers, toes, nose, and ears to keep that warm blood close to your core. That restriction is exactly the vasospasm that causes a Raynaud's attack. So the strategy is: keep the core warm, and the body has less reason to shut down blood flow to your fingers and toes. Thermal base layers under your clothes (an ULTRA LITE™ top is 3 times warmer than cotton and thin enough to be invisible), a hat in cold weather (your head radiates a significant amount of heat), multiple thin layers rather than one heavy garment (air between layers traps warmth), and a warm indoor environment all contribute. This isn't our opinion - it's the single most consistent recommendation from the Raynaud's Association, the Mayo Clinic, and the Cleveland Clinic. Socks and gloves address the symptom. Core warmth addresses the cause.
They can, and for specific situations they have a genuine advantage. Heated socks generate warmth actively via battery-powered heating elements woven into the fabric. This means they can add heat that your body isn't producing - which matters during a severe Raynaud's attack when blood flow drops and your foot's own heat production drops with it. In that scenario, passive insulation (thermal socks) has less body heat to trap, while heated socks are still generating warmth independently. The trade-offs are real, though. Heated socks are bulkier than thermal socks, which limits which shoes they fit in. They require charging - typically 3 to 8 hours of warmth per charge depending on the heat setting - so you can't wear them all day without planning. They cost more, and the heating elements add weight. For most people with Raynaud's managing daily life - home, work, errands - high-quality thermal insulation is the practical everyday answer. It works without batteries, without charging, without thinking about it. For severe Raynaud's in extreme cold, or for extended outdoor exposure where passive insulation reaches its limit, heated socks have a genuine role. Many people use both: heated for outdoor winter activity, thermal for everything else. That's a reasonable approach.
The most important rule: avoid cotton. Cotton absorbs moisture readily and holds it against your skin. Once a cotton sock is damp (from sweat, from rain, from snow melt), it actively cools your foot through evaporation instead of warming it. This is why cotton socks feel cold so quickly in wet conditions: the moisture is working against you. For Raynaud's, that cooling effect can trigger an attack. Look for thermal yarns, acrylic blends, or wool - materials that either repel moisture or insulate even when damp. Synthetic thermal yarns (like the high-performance thermal yarn in Heat Holders® socks) are engineered specifically for heat retention and can outperform natural fibers in lab-tested TOG measurements. The key metric is TOG - Thermal Overall Grade - a standardized lab test of how well fabric retains heat. A cotton sock scores about 0.3 TOG. Heat Holders ORIGINAL® socks score 2.30 TOG, roughly 7 times warmer than cotton. That difference isn't marginal - it's the difference between a sock that might help and a sock that measurably changes how your feet feel.
Yes, and this catches many people off guard. Raynaud's is triggered by cold and by temperature changes - not by winter specifically. Any sudden drop in the temperature your body is exposed to can set off an attack. In summer, the most common triggers are air conditioning (walking from 95°F heat into a 68°F office), cold drinks (holding an iced coffee contracts the blood vessels in your hands), reaching into a freezer (a blast of cold air on already-sensitive fingers), and swimming (cold water is one of the fastest triggers). Some people with Raynaud's report attacks in air-conditioned supermarkets, particularly in the refrigerated and frozen aisles. Others find that even the transition from warm sunshine to shade on a mild day is enough. Many people with Raynaud's carry a light layer year-round - a thin cardigan, a pair of fingerless gloves in their bag - specifically for these moments. Summer Raynaud's is less frequent than winter Raynaud's for most people, but it's real, and being prepared for it makes a noticeable difference in quality of life.

Where to go next

Shop ORIGINAL™ Socks

The sock most Raynaud's customers start with. 7x warmer than cotton.

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What Raynaud's sufferers say

Real reviews from people managing Raynaud's, and why the RA endorses these products.

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Raynaud's Association

Condition support, community, and advocacy.

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Common questions

Twelve answers from TOG ratings to heated socks. Practical, honest, and sourced.

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Sources and further reading

Heat Holders® socks are tested and endorsed by Raynauds.org. We don't make medical claims about our products. If you have questions about Raynaud's, diagnosis, or treatment, consult your doctor.

Last updated July 2026. Condition information checked against current guidance from the Raynaud's Association, the Mayo Clinic, and the Cleveland Clinic. Product recommendations based on the current US range.