Abstract: A disposable waterproof covering for a cast or bandage on an arm or leg to be used primarily when bathing or showering to protect against wetting the cast or bandage. A generally tubular plastic sleeve is sealed to the user's arm or leg above the cast or bandage by a flexible plastic strap to effect a snug, water-tight contact of the sleeve with the arm or leg. The strap is secured by an adhesive at one end to the sleeve adjacent the open end of the sleeve and wound around 360.degree. and secured at its other by a pressure sensitive adhesive.