The ICE MASTER is ready to tackle rapid winter ascents, high summer mountain traverses and the wide array of new school of mixed-ice and dry-tooling routes. Whether you are moving at full speed in the mountains or crag climbing with your "points" overhead - light weight is important. ICE MASTERS are near minimum mass employing a high tenacity Teramida fabric body with 2mm full grain leather cuff, lacing overlays and heel counter. This combo is backed up with triple layer Thinsulate for warmth and Boreal Dry-Line for complete weather protection and waterproofness. The ICE MASTER also features generous padding throughout and Boreal's Ankle Lacing System and removable Velcro Strap - to suck the rear of the boot in and lock your heels down for extra climbing power.... while maintaining ankle flexibility. Sole is ultralight TPS-3 with triple density rubber for traction & support and is compatible with all crampons. Midsole is 10mm EVA-PRO for shock absorbtion and extra thermal insulation. Sold in UK sizes - example, if you wear a US 10.5 (UK9.5) hiking boot order a UK10 (US 11) for an equal fit. Shipped anywhere, anytime. Fit Guaranteed!