The Kaliber Pro 105 LV GW Single-BOA Ski Boot builds a 98-millimeter low-volume last around a foot that never had room to spare in a standard-width shell. A single BOA on the cuff dials in micro-adjustments in seconds, while two alloy buckles on the lower shell lock the foot down for direct power transfer to the ski. The bi-injection shell pairs stiffer plastic through the back with softer plastic over the foot, and a heat-moldable Synapse liner molds further to close out any remaining gaps. What Our Gearhead(R) Experts Are Saying:"I dialed in the BOA cuff before the first run and never touched it again all day. My heel stayed locked, and my toes had zero room to slide, even through chattery groomers where a looser shell usually lets my foot move."