The Mainstays NexGen Waterproof Anti-Allergen Zippered Mattress Protector in Queen size is a solid white rectangular cover made of polyethylene material. It features a convenient zipper closure and is designed to be waterproof, making it a practical and protective choice for the bedroom. With dimensions of 80" in length and 60" in width, this mattress protector is suitable for a standard queen-sized bed and is ideal for those looking to safeguard their mattress from allergens and spills.