Comfort and support from heel to toe Ribbed cotton knit creates a snug, stay-put fit that helps prevent slipping Cushioned footbed adds extra padding in the heel, arch, and toe for all-day comfort Light compression arch support reduces foot fatigue and keeps you feeling steady The Socksmith Active Crew Sock is designed for comfort where it counts, with a seamless toe to limit irritation and a supportive fit you’ll notice with every step. Durable, breathable, and easy to wear, it’s a reliable sock you’ll keep reaching for. tech specs Crew height Comfort ribbing for a secure, snug fit that limits slipping Dynamic arch support with light compression to provide extra comfort and lessen fatigue Cushioned footbed with uber-squishy padding for your heel, arch, and toe Flat knit seamless toe which limits irritation or chafing 144 needle construction for durability 85% Cotton, 13% Nylon, 2% Spandex (content ratio varies by style) Machine wash cold. Do not bleach. Tumble dry low or hang to dry size guide S/M: Women's US Shoe Size 6-10.5, Men's US Shoe Size 5-9 L/XL: Women's US Shoe Size 10.5+, Men's US Shoe Size 9-13