Product Description: The Tecnica Performance Power Strap is a premium replacement power strap that upgrades the drive and response of your ski boots. Swapping in a wider, performance strap adds instant power transmission and a more connected feel over the cuff. Features: Upgraded Power Transmission: A wider performance strap boosts responsiveness and cuff wrap versus a stock strap. Hard Flex: The Hard version gives a stiffer, more direct feel. Cam Buckle: A cam-lock buckle makes it quick to tension and release. Bootfitter Upgrade: A simple bolt-on upgrade for most alpine ski boots.