The Tecnica Mach Sport MV 100 Ski Boots combine the great performance Tecnica is known for with a level of comfort you've never experienced until now. A C.A.S. polyurethane shell driven by a lightweight polyolefine cuff deliver your every motion to your skis while the ultra comfy Sport N.F.S. liner keeps things toasty. New for this year are GripWalk soles for increased security and convenience while walking.