Yes, they´re cotton socks—but they work harder than any other cotton socks you´ve worn. They wick sweat so your foot feels cooler, while still giving you that incredible comfort and cushioning you expect from regular cotton.Features:- Fast-Drying- Moisture Wicking- Lightweight, soft cotton-blend fabric for all-day comfort- Durable material wicks sweat & dries really fast- Locked-in fit design keeps sock securely on heel for an adjustment-free fit- Odor control technology reduces odor in the sock- Seamless toe construction delivers superior comfort & reduced irritationSpecifications:- Material: 73% Cotton/22% Polyester/5% Elastane