Shell - Polyester + Nylon blend, very soft and lightweight, wrinkle-resistant with no sound. Stuffing - White Feathers Fiber and Down Mix Ideal for less warm season and hot sleepers Twin Size - 68 in x 88 in Full Size - 88 in x 90 in King Size - 104 in x 90 in Cal King Size - 108 in x 94 in Machine wash ConstructionDesigned with a baffle-box construction to ensure uniform distribution of the duvet filling and avoid shifting or bunching. WarmthThe lightweight version is the perfect comforter for hot sleepers, summers, or for those who reside in warmer climates.