Brownmed Seal-Tight - Wound and Cast Protectors offers waterproof protection for casts and bandages. Made of polyvinyl, these easy and durable covers stay dry while bathing and showering. Brownmed's patented application ring eliminates the need for straps or closures. A latex free diaphragm stretches over a cast or bandage to form a watertight seal. Seal-Tight covers are reusable. They are also guaranteed to last the life of the cast.