Offers more shock absorption than conventional 4" (10cm) mats. 1" (2.5cm) high-density foam provides lightweight durability and resilience. Guaranteed for 5 years not to sag or mat down. 21-oz. vinyl coating is nonflammable, mildew- and acid-resistant. The antibacterial covering makes cleaning easy — just wipe with a damp cloth. Folds for easy storage. Reinforced handles for transport or hanging storage.