Pure bamboo fiber's sensual smoothness, wicking and ventilation make it the ultimate eco choice for bedding. Made of 100% bamboo fiber, they offer silk-smooth luxury, don't slide loose when tucked in and resist wrinkling when laundered. They provide snuggly comfort for a perfect night's sleep. All that from a renewable, pesticide-free resource-a great combination of good value and environmental values. 250 thread count; fits mattresses up to 15" deep.