New in box. The Head Challenger 120 is equal parts comfort and performance with a ski/walk switch thrown in there for good measure. This backcountry ski boot features Head's Adaptive Fit Technology where the Last can adjust between 99-101mm simply by turning a screw on the boot sole. The Adaptive Fit in these Head ski boots ensures a comfortable fit that usually can't be attained in most high-performance boots like this one. The Challenger has a stiff 120 flex which is intended for aggressive skiers, but there is a Ski/Walk Mode that unlocks the the upper cuff for easier walking around the lodge. The Challenger 120 is an optimal choice for advanced or expert skiers who ski all terrain but maybe want to dip their toes into the backcountry. Flip Ski Walk:A flip lever at the back spine of the boot has a toggle to switch from Ski or Walk mode. Try to keep it in ski mode while skiing, or it might feel a little funny skiing in the back-seat like its nobody's business! This does make walking around the resort looking for the bar or the kids a little more comfortable.

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