Kevlar cores and aluminum wire-carabiners are all the rage when it comes to ski leashes. The Black Diamond Helio leashes have joined the party. If you have night-visions of your skis jetting down a mountain into the abyss, you should join too. Coiled Kevlar wrapped in polyurethane coating offers just enough stretch and flexibility to allow for full range of motion, but not enough length to get in the way. Clip and unclip from your ski boots with the aforementioned carabiner.