10" tall 2.8 mm thick premium full grain leather uppers that utilize a one piece vamp construction with no seams down the tongue for better abrasion resistance and waterproofness,Reinforced double and triple stitching in high wear areas and anti-corrosion boot hardware that swivels instead of breaking,7 mm nylon midsoles for extra support with heavy pack loads,Windtex waterproof breathable flexible membrane and 400 gram Thinsulate for comfort in cold weather,Kenetrek K-73 outsole for great traction and added durability, along with a reinforced rubber sole guard for extra abrasion resistance