cotton blend, ankle length, arch clinch, pull-on moisture-wicking technology engineered to wick away sweat perfect combination of comfort and cushioning Size M fits men's shoe sizes 7 - 8.5. Size L fits men's shoe sizes 8.5 - 13 Introducing our Under Armour Men's 6-Pack Cotton Quarter Sock, a revolutionary ankle crew sock that goes above and beyond your expectations. Yes, they are cotton socks, but they are engineered to wick away sweat, keeping your feet cool and dry throughout the day. Experience the perfect combination of comfort and cushioning, just like regular cotton socks, but with added moisture-wicking technology. Don't compromise on comfort, choose our cotton socks that offer the best of both worlds. Say goodbye to sweaty feet and hello to ultimate comfort.