Recommended for: three season alpine climbing, glacier travel, and carrying heavy loads. This lightweight boot is loaded with technical features including a climbing shoe inspired lacing system allowing for a precise fit, a neoprene cuff to keep out snow and debris, PU midfoot abrasion guard, a stiff carbon-reinforced stabilizer, and a soft flexing ankle for comfortable uphill travel. Upper Split Leather, Fabric Lining GORE-TEXA(R) Insole Mountain Insole Midsole Dual Density DuraPUA(R), Semi-Automatic crampon (C2) Compatible Outsole VIBRAMA(R) ALP TRACA(R) NUMEN Weight 800g / Single Shoe Country of Origin Italy Other No intentionally added PFAS