Crew LengthMen's Crew Length Heat Holders® socks rise to about the mid-calf. If a taller sock is required, please shop Men's Long Length Socks. Most Men's Heat Holders® Socks fit men's shoe sizes 7-12 inclusive. If you need a larger size, shop the Men's Big/Tall styles for 13-15. Men requiring sizes 4-8 can shop the Women's styles. The Slipper styles have a no-slip grip on the bottom for traction on indoor hard surfaces such as wood or tile. Choose a style to buy now! All styles available in multiple colors!