ATS technology provides ergonomic support on uneven terrain, DRYShield waterproof construction keeps you dry in wet environments, U-Turn Entry System lets people with high arches easily slip-on their boots, Waterproof full-grain leather, Removable Energy Max anti-fatigue insole for maximum comfort, Dual-density FLX Foam midsole for lightweight shock absorption and cushioning, Durable oil and slip-resistant Duratread sole, Debris-releasing tread design, ASTM F2892 EH rated, Stockman heel and goodyear construction,