Standard military 8? high rise boot. Made of full grain leather that is water-resistant. Lightweight 1000 Denier nylon side panels reduce weight for extra mobility. Rocky guarantees these boots are waterproof. Rocky Airport foot bed is engineered from 40-density polyurethane that can absorb shock and then return to its original form, protecting your feet and legs from unwanted fatigue, aches and pains. Airport foot bed is also the ultimate in supportive engineering. RigiTrac rubber outsole is comfortable and made of tough EVA for oil and slip resistance. Rubber outsole is also non-marking and non-metallic.