This is European craftsmanship at its finest with Ecolabel and Oeko-Tex certification. Our natural cotton pad is soft, durable, and provides a comfort layer that goes on your mattress just like a fitted sheet with encased elastic all the around the opening. Undyed and unbleached natural combed cotton is used inside and out so it's 100% natural and 100% cotton. Washable too! But don't worry we know what you're thinking... the cotton batting fill inside is carded which means it won't shift or get lumpy after laundering and performs as a barrier against skin oils and perspiration. Imported from Spain.