A completely breathable waterproof mattress protector. Made with a 100% organic cotton knitted surface with a waterproof and breathable Neotherm® inner membrane, this mattress protector is an excellent solution to protect your investment in a DUX Bed. The full skirt is made of 35% cotton / 65% polyester and is constructed like a fitted sheet with elastic to easily slip on and off. This protector is made with an 8” elastic pocket and is designed to be used only with DUX Top Pads. Machine wash and dry.