Immediately recognisable thanks to their innovative last shape and unique design, Scarpa Ribelle Lite HD Boots' combination of Sock-Fit construction system, Tech Fabric materials, and HyperDry technology make them great for mountain guides and mountain professionals.Their Pentax Precision III sole has a light PU midsole and Vibram Mont compound on the outsole. The TPU crampon insert on the heel makes it compatible with the use of semi-automatic (C2) crampons while the front part of the sole makes easy for the foot to roll fast off the heel.HyperDry lamination lining - Fully waterproof and highly breathableVibram Pentax Precision III outsoleHeel Tension System - Offers great stability and adaptability Sock-fitconstruction system - offers a fit as snug as a sockFlex point system - Allows your ankles complete freedom of movement whilst maintaining supportMicrotech fabric upperActiv Plus midsoleAutofit collar - Ensures adaptability and comfort of the upperSpeed lacing - Allows adjustment of the internal volume