Cariloha Men's Crazy Soft Crew Sock - Buy 3 Get 1 Free 10% elastane Simply add 4 pairs of socks to your shopping cart, and the discount will be added automatically! S/M: Size 7-10 L/XL: Size 10-13 Knitted together with odor-resistant bamboo blends, these socks are cozy and stylish in equal measure. Designed with signature arch support and seamless toe construction, the thickness of the foot bed has been enhanced for plush bamboo comfort.