About This Engineered from 75% Polyester and 25% Cotton Imported Guaranteed to Fit and Guaranteed to Stay On 100-Percent Waterproof Dream Cool is a performance fiber that creates a cooler, more comfortable micro-climate with Polyester for Strength-Polyester is a stronger, more flexible fiber that experiences little to no shrinkage with washing. DreamFit Technology features high performance elastic corner straps and 360 self-tailoring binding. Protect your Split California King mattresses with our 2-Piece Mattress Protector Set. Each set includes two high-quality protectors, designed to fit perfectly and provide superior protection against spills, stains, and allergens. Ensure your mattresses stay fresh, clean, and comfortable. Overview Brand : DreamFit Color : White Size : Split California King Fabric Type : Engineered from 75% Polyester and 25% Cotton Special Feature : Washable, Water Proof