The Crispi Briksdal MTN GTX has everything needed to make a great mountain boot. The Flex 3 stiffness rating gives these boots enough rigidity for those mountain hikes and enough give to make for a comfortable trek. The Vibram Megagrip sole is designed for traversing steep, downhill paths and provides excellent traction in wet conditions. The asymmetrical lacing system allows the user to customize their lacing to better navigate technical terrain and the nubuck and high resistance tech fabric upper provides durable support when packing out of rough terrain.FeaturesUpper: Water-repellent microfiber nubuck and High Resistance Tech FabricGORE-TEX Performance Comfort FootwearInsole: Differentiated structureProtection: Rubber randSole: Vibram Megagrip sole with EFX Elastoflex System midsoleHeight: 9"Treatment: Waterproof conditioning sprayFlex 3 stiffness rating