All of Socksmith bamboo socks for men are made using an OEKO-TEK certified process which is completely free of harmful chemicals. On top of that, they are certified organic through OCIA! 

Super-breathable, antimicrobial and antibacterial!

• Sock size 10-13 fits U.S. men’s shoe size 7-12.5
• Fiber Content: 68% Rayon From Bamboo, 30% Nylon, 2% Spandex