The Scarpa Ribelle Ice Mountaineering Boot is a dedicated boot for dry tooling and ice climbing that is compatible with dry tooling integrated crampons. The Ribelle Ice Mountaineering boot has a sock fit for a secure foothold and has an insulated and water-resistant synthetic upper. A removable thermal gaiter allows for extra warmth and weather protection, and the BOA Fit System provides an easy and secure closure. Although the brand's size chart has recommendations for how to choose your size, customer feedback suggests this shoe runs small, we would suggest sizing up if you are unused to a tight performance fit.