Even though the boot looks bold and is designed to handle abrasion from the outside, the inner sock construction with a weaved in elastic gaiter and a Microtech knitted upper wrap up the foot excellently, making it a restful environment for your foot. Plus, the HDry lining ensures that the boots feather weight doesn\'t falter, stopping absorption even in damp conditions.The thermic insulation lining is divided in two parts: the front part in Primaloft Gold Insulation 200 g/m2 and the heel and ankle part in Primaloft Silver Yarn to increase the insulation on the toe. The HDry membrane waterproof and breathable, is firmly laminated to the upper inner side making it absolutely waterproof, guaranteeing an ultra-thin protection.Next, there\'s the AOLS - Asymmetric Overlap Lacing System that\'s divided into two zones: in the external part there are plastic lace loops that allow a fast sliding of the lace; in the inner part eyelets inserted in the closing flap (overlap) to increase wrapping and protectionSock-Fit Plus KN integrates a stretch tongueAOLS - Asymmetric Overlap Lacing SystemSock-like ankle cuff Accentuated toe rocker profile Lightweight PU midsole - impact absorptionHDry technology delivers waterproof and breathable protectionSemi-automatic crampon compatible