Magnum Storm Master SZ CT WP Safety Boot Features Durable waterproof full grain nubuck upper 100% 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 outer sole offering outstand comfort and support Heat Resistant outsole up to 300 °C – HRO High traction rubber outsole with grips provides grip and durability Slip resistant outer sole - SRC YKK 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