The Lien AT from K2 offer you stiffness & support to help you send it on the biggest drops & charge the steepest lines. Or quite simply put the power & response into your riding when & where you need it, on piste, of piste in the park wherever you want to go. The K2 Lien AT has tunable Tripod technology chassis which means that you can dial in the lateral flex of the binding through 3 different durometer bushings included in the box. The Tripod chassis is 3 contact points one either side at the front of the binding & one right under your heel. What does all this mean? It allows the chassis to have a little lateral flex to feel a tad more forgiving & absorb vibrations & shocks, want more vibration dampening? Use the softest bushing, want more response? Go for the hardest bushing, want it really loose & free? Remove the full EVA foam basepad which sits underneath the binding for a much surfier feel. These come highly recommended for anyone wanting a responsive binding without being harsh, finest top quality well done K2!