The most comfortable leggings in your wardrobe, and the most eco-friendly too. Bamboo fibers create a seamless fabric that is unbelievably stretchy and breathable, naturally wicking moisture away from your skin. Machine wash. Luxurious-feel 77% bamboo viscose/18% nylon/5% spandex. Imported. Regular Size (8-16). Plus Size (18W-22W). Specify Black, Navy, White or Brown.