Durable waterproof full grain nubuc upper100% waterproof and breathable, Mag-Dry bootie membrane, Keeps your feet dry in the wettest conditions - Poron inserts in the forefoot and heal to provide extra cushioning and shock absorbsion - Breathable moisture wicking mesh lining with padded collar for all day comfort - Duel density hi rebound PU midsole & rubber outersole offering outstand comfort and support - Heat Resistant outsole up to 300 °C – HROHigh traction rubber outsole with grips provides grip and durability Slip resistant outersole - SRCYKK side zip for easy access - High density Padded collar and tongue for extra comfort - Durable, lite weight & rustproof hardware - High rebound areo PU innersole for instant step in comfort - Scanner safe composite toe cap