Measure the circumference of your arm at two inches above the cast or wound, and refer to the size chart for the correct size. Consider both half and full arm sizes. The product will not work if the seal is not snug around the arm.
UNIQUE: Vacuum seal technology with proprietary valve & bulb suction designed to cover casts or wounds with a snug waterproof seal
SWIMMING, SHOWERING & BATHING: waterproof cast covers that are 100% airtight and submersible even for swimming