A versatile alpine boot for mixed climbing, heavy backpack and hunting trips, this boot features FLEXFIT-SYNCHRO for comfortable ankle flex and a generous rocker shape for easy walking. Automatic crampon-compatible. Durably waterproof/breathable. -Upper: Mountaineering Split Leather/Microfiber -Lining: GORE-TEX & PrimaLoftA(R) 400g -Insole: Insulate Pro Alu-Coated w/ Fleece -Midsole: DuraPUA(R) -Outsole: VIBRAMA(R) ALP TRACA(R) ICE -Stabilizer: Mountaineering Hard -Weight: 870 g/Single Shoe -Country of Origin: Italy