IPC Definitions - January 01, 2012
A63C 10/24 - Definition
This group covers:
Calf or heel supports which are mostly used for non-rigid type boots, where the back part of the shaft is soft and pliable. These types of supports are mostly found in combination with the bindings of groups A63C 10/04 and A63C 10/10. Calf and heel support allow the transmission of forces pointing to the heel when riding on the back edge of the snowboard. A calf support is usually called high back (ref. 30 in the first example drawing, ref. 2 in the second example drawing). Heel supports are usually in the form of a heel loop (ref. 56 in the first example drawing, ref. 17 in the second example drawing).