The Kaliber Pro 120 LV GW Single-BOA Ski Boot pairs a 120 flex with a 98-millimeter low-volume shell that leaves nothing between the foot and the plastic. That tight fit is what makes the stiffness worth having, since energy goes straight into the ski instead of getting absorbed by give in the boot. A single BOA on the cuff dials in the fit in seconds, and two alloy buckles on the lower shell add the security to hold that fit through hard, fast turns. The bi-injection shell balances a stiff rear for power with softer plastic over the foot, and a heat-moldable Synapse liner closes out any remaining gaps. What Our Gearhead(R) Experts Are Saying:"I've pushed this boot into high-speed carves where a softer flex would fold, and it just transfers everything straight to the edge. My foot never moved inside the shell, even when I was standing on it hard through the whole turn."