Hiking inspired with lasting durability, the Vicious 4.5 NMT work boot from Danner® feels like the kind of boot you'll want to wear day after day!Rich full grain leather upper offers comfortable moisture protection and long term endurance for all jobsite conditions. Speed lace system for a secure fit. Abrasion resistant toe cap for added durability. 100% waterproof and breathable GORE-TEX® liner is engineered to keep your feet dry and comfortable - even in extreme conditions. Danner Trailguard platform provides lightweight, seamless support to provide a roomier fit in the toe box while still offering a snug fit in the heel.Nylon shank. Vibram® Vicious outsole is oil and slip resistant and has a low-profile 90 degree heel. The non-metallic safety toe will not conduct heat or cold to the foot, and meets or exceeds ASTM standard F2413-11 I/75 C/75 EH. Electrical hazard (EH) footwear is manufactured with non-conductive electrical shock resistant soles and heels.4.5 height.