USA King Size (76" x 80") Made from a polyurethane coating, giving a high gloss finish, on strong, stretchy polyester jersey. These are the perfect high end accessory to your Nuru Massage Experience. Spice up your relationship and have more fun in the bedroom with these sensational and exotic Hi-Gloss PU fitted sheet. This fantastic bedding is the perfect Nuru Massage Playground. PU bed linen is durable, machine washable & minimum iron on reverse. The fabric is specially resistant to nuru massage gels but it is not completely waterproof along the seams on the edges, if using extremely large quantities of gel, we advise you to use some bedding protection under the PU. It is a very durable, fun fabric that is easily cared for. It will not be damaged by lubricants and massage oils. PU bedding is machine washable. The fabric is resistant to oils/lubes over the width of the fabric, care must be taken at the seams which are not waterproof. Please don't confuse these high quality, long-lasting bed fitted sheet with cheap imitations which are often literally pieces of polyurethane sheet!