A burly boot made for cold, high altitude climbing, the Scarpa Inverno features a burly plastic outer shell with a warm inner liner. The Pebax outer shell retains great warmth while still being mobile in the cold, perfect for handling any technical ascents in frigid temps. A warm High Altitude Liner keeps you comfy while a Vibram sole and welts for crampons, making this a great boot for technical climbs and long high alpine ascents.