The Spantik is perfect for 6-7000 meter peaks or anywhere that you need a toasty warm performance fit * This is a lighter, warmer more compact alternative to the Nuptse. It is step-in crampon compatible and provides excellent technical climbing capabilities. * Molded TPU ankle backstay reinforcement * PE micro-cellular thermal insulating closed cell foam lined with a thermo-reflective aluminum facing coated with an anti-abrasion flockingcoated with an anti-abrasion flocking * IDEAL TERRIAN: 6000-7000 meter peaks or high cold mountaineering conditions