Our Organic Cotton Duvet Cover and shams are made from 300 thread count organic cotton in a single-pick, sateen weave. The thread count makes the duvet cover lightweight and breathable, while the sateen weave ensures your duvet cover and shams will get softer and comfier with each wash. Single-pick textiles are also known for their softness and tight weave that offers long-term durability, so you can count on your organic Endy Duvet Cover and shams to stay in great condition.