Our model 300 thread count 100% bamboo-cotton sheets are produced from 60% bamboo viscose and 40% cotton. What makes these sheets special? The combination of bamboo and cotton makes the sheets durable, breathable, and divinely soft to-the-touch sheets. The sateen weave gives these bamboo-cotton sheets a silky shine and a smooth hand. Bamboo/cotton hybrid fibers are as soft as silk, naturally breathable, and come from a sustainable resource. They feel cool in summer and warm in winter because they possess ideal temperature-regulating properties. Machine wash and dry on low heat settings. Overheating the bamboo/cotton sheets may cause excessive shrinkage. For no to low wrinkles, remove promptly from the dryer.