The flex of your ski boots is essential for the control of your skis, and therefore your performance.
TECNICA Worldcup Elastic Performance Booster Straps, hard
Tru-Fire PT Patriot Power Strap
PERFORMANCE POWER STRAP MID, es
STRAPS, en
Pro-Tec Elbow Power Strap - Clarke Sports
Anton Bauer Power Strap 13, Lightweight Battery Powerbelt, 13 volts, 55 watt hour, 4 pin XLR Connection : Electronics
Move Over Voile, There's a New Strap in Town
Anton/Bauer PS-13 Power Strap Battery Belt POWER STRAP 13 B&H
Clipless road cyling shoes - Tempo Powerstrap R5 - Fizik
Sidas Race Power Strap P1