Sportiva's top-of-the-line ice boot has had a complete make over - for better ankle flexibility, cushioning and traction. Multi-directional 3DFlex ankle and low profile lacing - with locks - enhance foot positioning options and hold your foot firmly so you can climb more naturally and make the best use of the terrain. Hate wearing gaiters while climbing with "points" in tight technical terrain? Count on the built-in Schoeller Dynamic gaiter to reduce bulk, keep ice chips out and seal in the heat. Uppers are water repellant and cut resistant Schoeller Keprotech (black) and synthetic Lorica leather (yellow) with Antiacqua coating backed by a waterproof barrier and quilted Primaloft insulated lining. Midsole is tapered 6-7 mm TPU (with built in crampon attachment points) over dual density Micropore EVA - for increased thermal insulation and shock absorption. Outsole is the revolutionary Vibram Impact Brake System - designed to reduce 20% of the impact force felt by the feet, legs, knees and back while walking on hard ground. The IBS - with it's offset / angled lugs and aggressive heel brake provides excellent traction as well. Guaranteed fit. Delivered anywhere in North America.