With the BOOSTER your skiing will improve dramatically and you will peg your fun meter! The BOOSTER wraps like a big rubber band around the boot top and your lower leg. It removes all that extra space without having to over- tighten the buckles. You'll get a quicker start, positive steering and more rebound. By using specially woven elastic webbing the BOOSTER creates an elastic bond between your leg and your boot. Pre-stretching the BOOSTER allows you to control the response of your skis.