100% WATERPROOF COOLING MATTRESS PROTECTOR: Do you often can't sleep in summer because of the heat Then you need a GRT Cal King cooling Waterproof mattress protector! It has unique cooling properties so you can't feel hot all night. Through thousands of tests, Our Cal King cooling waterproof twin mattress protectors are made of a double waterproof membrane so that can effectively protect your mattress from liquids such as urine, and sweat. ORGANIC BAMBOO MATTRESS PROTECTOR: This Cal King bamboo mattress protector makes airflow pass through, and always be silky and breathes when sleeping on the mattress cover, making it comfortable and cooling even in summer. Our Cal King cooling twin mattress protector covered with 40% high-quality natural Bamboo fabric, which are relatively more skin-friendly, cooling, and softer than other. CLASSIC 3D AIR FABRIC DESIGN: The GRT's Cal King bamboo mattress protector surface is 3D Air Fabric, which makes your mattress more breathable, smooth, and softer, and have a good sleeping environment. This Cal King cooling waterproof mattress cover will not make any noises or change the feel of your mattress. Say bye-bye to plastic materials that make crinkle noise. EASY TO CARE & DURABLE: Machine washable and tumble dry on a low setting. This Cal King cooling mattress protector is Eco-friendly produced by the strict process and inspection to keep waterproof capability even twists and machine washing 100 times. GRT Cal King bamboo mattress cover has stretchy skirts that fits up to 26'' mattress. Just enjoy it.