Boody EcoWear Men's Sport Ankle Sock Rayon made from organically grown bamboo Lots of padding under your sole to make those workouts or runarounds a bit more comfy on your feet. Moisture-wicking, ultra-breathable and thermo-regulating. 91% Rayon made from bamboo, 7% polyester, 2% spandex 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! Never has ecowear been so luxurious. Boody is as soft as your favorite pajamas, but performs as high-quality activewear. Stay cool in the summer and warm in winter, without bulk. Bamboo fiber is lighter and softer than cotton and perfect for layering. No one likes being clingy. Unlike traditional cotton basics, Boody will keep its distance as bamboo fibers prevent static build-up. As you take a deep breath, your Boody Eco-Wear will too. Bamboo fiber has micro-gaps, which pull away moisture and keep air flowing.