The shape-shifting Impact 120 continues to make an impression on testers with its awesome, customizable fit. Our fat-footed brutes gave it top grades, knowing a quick Custom Shell cook would give them the room they needed. Medium-width testers said no tweaks needed - skis great right off the rack. Extra points awarded for the option to stiffen the flex with an added Backbone bolt. Notes: World Cup Advanced Shell Technology maintains a close match between shell and liner shape and the foot and leg for quick and powerful reaction to movements, Custom Shell technology's Kaprolene panels on medial and lateral side of the foot allow for 6 mm of custom width expansion, Backbone rear spine anchor system provides rigid fore-aft engagement, dual cuff adjustment offers maximum range for lateral stance tweaks.