The Hocket-Style Umpire Leg Guard has a low-profile hockey design minimizes gaps in protective shells. Expands from one to three knee caps. Knee cap extensions are specially designed for umpire use to conform to the thigh while in a standing position (knee cap extensions sold separately). Full calf and ankle wings. Exclusive extra-long flexible instep/foot cap, especially important for umpires who don't wear protective footware - hook and loop attachment allows for flexible adjustment.