Protect your mattresses from stains and liquids with these waterproof mattress protectors. The fitted sheet is made of 100% cotton flannel with a special coating. It makes the mattress cover waterproof but still soft and nice against the skin. The cotton flannel fabric is breathable to keep you cool in summer and warm in winter. Thanks to the elastic ribbons at each corner, the mattress cover can be attached to the mattress easily and firmly. Additionally, the mattress protector is particularly suitable for households with babies, toddlers and animals. The mattress protector is machine washable and dries quickly.