Shaft Height: Approx. 8'' Tall. Developed side by side with the United States Marine Corps, the RAT (Rugged All Terrain) earned its name among elite warfighters as being the only proven USMC rugged all terrain boot available. Precisely crafted with a highly durable nubuck leather, a tear resistant 1000 Denier nylon, an abrasion resistant polyurethane enforced heel and toe cap and an advanced Vibram 360 Dri Ice outsole, the RAT embodies Danner's commitment to crafting higher standards. Made in the USA. Berry Compliant. Eagle, Globe, and Anchor emblem and USMC certified. 100% waterproof and breathable GORE-TEX liner is engineered to keep your feet dry and comfortable - even in extreme conditions. Durable, waterproof nubuck leather with a breathable and tear resistant 1000 Denier nylon upper. Polyurethane coated leather over toe and heel for increased durability. Danner's hand crafted stitchdown construction provides a wider platform for increased stability underfoot. This construction makes the boot recraftable in our Portland factory. Speed lace system for a quick, secure fit. Extended sizes available for women or those with smaller feet. Advanced lug design Vibram 360 outsole with Dri Ice remains flexible even in extreme cold for superior traction. Fiberglass shank. 70 oz.