Men's Rayon from Bamboo Low-cut 3PK Sport Socks (8-12 Shoe) 17% nylon Content: 80% Rayon (bamboo), 17% Nylon, 3% Lycra-Spandex 3 Pack (ORDER 2 FOR FREE SHIPPING) Rayon from bamboo- Natural, Renewable, Biodegradable, Anti-microbial / Natural Deodorizer Light Weight Construction - Very thin sock ideal for summer! Hypoallergenic - Great for people with allergies to synthetic fibers! You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!