Linen is the natural moisture wicking fiber, and this 100% linen collection covers natural and sustainable fiber that is comfortable and responsible. Face and reverse of comforter and shams are made of 100% linen woven fabric. Comforter is filled with 100% polyester down alternative fiber filling. This item is machine washable, but please be sure to use appropriately sized machinery to avoid any excess wear on the items. Coordinating accessories sold separately.