Warm, soft feet change everything about a cold day. The Heat Holders® Women's LITE™ Fauna Birds Novelty Crew Sock is 5x warmer than a standard cotton sock. Made with advanced thermal yarns that are long looped and intensely brushed, they're incredibly soft on the inside — trapping warm air next to your skin to keep your feet warmer for longer. A charming bird print brings a touch of nature to cold-weather dressing. Stay-up, non-constricting fit stays comfortable from morning to night, and the crew length adds extra warmth and coverage. LITE™ socks are great for relaxed shoes like running shoes. Just drop in the washer for convenient care.