The all-new Adrenaline Pro S GTX Boot is a LACE-UP mountain-focused boot for the most aggressive riders. Featuring a custom-developed MichelinA(R) sole for grip and durability, the Adrenaline Pro S GTX Boot is the most popular boot in snowmobiling and now even more supportive. Strong standard lacing combines with a molded tongue for improved closure force distribution, creating added support and comfort on the running boards. GORE-TEX GUARANTEED TO KEEP YOU DRY(TM) GORE-TEX protects insulation from water 600g 3M(TM) Thinsulate(TM) Insulation Lace-up Leather upper with reinforced rubber toe & heel Custom MichelinA(R) rubber outsole for traction & durability Reinforced outsole toe Molded tongue distributes lace closure force evenly EVA midsole for walking comfort Removable moisture wicking OrtholiteA(R) insole Breathable, moisture-wicking liner Half-size insert for adjustable fit D-ring for pant leg retention Entry assist heel loop Women&';s sizing: size down 2 from men&';s