About This Top Layer: 70% Rayon Derived from Bamboo Viscose, 30% Polyester. Sidewall: 100% Polyester One-way Jersey Fabric. Imported Superior Fabric Blend: Made with 70% rayon derived from bamboo viscose and 30% polyester for a soft, comfortable, and breathable sleep surface. 100% Waterproof Protection: Guards your mattress against spills, and other liquids, while remaining noiseless for undisturbed sleep. Deep Pocket Fit: Stretch-knit design with 22-inch deep fitted pockets ensures a snug fit on high-profile and standard mattresses. Enhanced Mattress Longevity: Shields your mattress from liquids and keeps it in like-new condition for years to come. Breathable Terry Cloth Layer: Absorbs moisture while allowing airflow, creating a cool and comfortable sleep environment. Easy Care and Maintenance: Machine washable and dryer-friendly for hassle-free cleaning and long-lasting use. Overview Brand : Defend-A-Bed Color : White Size : Twin Fabric Type : Top Layer: 70% Rayon Derived from Bamboo Viscose, 30% Polyester. Sidewall: 100% Polyester One-way Jersey Fabric. Top Layer: 70% Rayon Derived from Bamboo Viscose, 30% Polyester. Sidewall: 100% Polyester One-way Jersey Fabric. Special Feature : Premium,Waterproof