Dry Pro Cast Guard w Pro Pump Small Half Leg 21 Jobst for Men 30 40 Thigh 5 (when sizing measure around Nasal Cannulas 5 (when sizing measure around the middle of the waist) * Provides pain relief and compression for muscle injuries and general lower back dysfunctions very simper to use You can't even pull it off * The Xerosox is rugged and made of high quality surgical latex * Special non skid grid helps prevent slipping * The built in Pro Pump also acts as a gauge showing that the vacuum is intact and cannot leak * Shipping Carton Size: 12 L x 10 W x 6 H * Pumps the air out Half Leg: Length 21 L (9 Opening) * For Youth and Small Adults Excellent retail packaging Sells itself * The XeroSox Pro Pump is the only leg and arm protector with the patented watertight vacuum seal * The XeroSox fits snugly yet comfortably during a shower bath and even an active swim * Unlike modified garbage bag products the Xerosox cannot slip off and leak