The AquaShield® reusable orthopedic cast cover protects casts, bandages and skin from water damage during showering, bathing and swimming. It slips on easily, forming a comfortable, completely water-resistant seal, without straps or buckles. It is made from tough polyurethane, a virtually indestructible elastic material, and comes in various ready-to-use arm and leg sizes for children and adults. For proper fit, measure the circumference of the limb directly above the cast.