Men's Rayon from Bamboo Ribbed Crew Dress Socks (3 Pair) Content: 80% Rayon (bamboo), 17% Nylon, 3% Lycra-Spandex Rayon- 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! Available in Kid's, Women's, and Men's sizes - be sure to check our store 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!