Zamberlan Men's 996 Vioz GT Hiking Boot 100% Leather Imported Rubber sole A Zamberlan Hydrobloc full-grain leather upper with straight-forward and effective design sits atop an exclusive Zamberlan Vibram 3D outsole providing excellent grip, superb downhill braking, wide lugs for easy debris removal, and an energy producing, rock-forward motion As with all Zamberlan soles, the Zamberlan Vibram 3D soles are re-solable Gore-Tex Performance Comfort membranes provide the utmost protection and breathability while the Microtex wicking nylon collar lining helps control excess moisture around the ankle The ZFS (Zamberlan Flex System) allows the boot to very comfortably flex forward without compromising support laterally Handcrafted in Italy