Guardmax Mattress Encasement is a waterproof and bed bug barrier mattress encasement. The Guardmax Mattress Protector comes in the following sizes; Queen, Short Queen, King, California King, Full, Full XL, Twin, Twin XL, RV (48" X 75"), and Cot (33" x 75"), Crib, and Mini Crib. The Guardmax Mattress Cover has a durable and air tight zipper made of nylon to ensure it won't snap or trap easily. It is currently offered in the following colors; white, blue, and gray.