KNEE STRAP WITH COMFORT PAD. Standard factory replacement - This strap / pad combination comes standard on all iWALK2.0 manufactured after November 2016 and is an upgrade on the previous 6" pad. This strap is intended for the behind the knee location. The larger, thicker pad provides additional comfort whether you are wearing pants, shorts, or a dress. Includes strap with buckles and removable 8.25" pad.