Storm Defender Waterproof breathable membrane allows moisture to escape while keeping your feet dry Cushion Comfort PU insoles provide comfortable support and reduce foot fatigue PU Strobel Pad and EVA Filler for added comfort and support Dual density slip-resistant rubber outsole with maximum surface contact FastDry Technology Lining wicks away sweat for comfort Electrical Hazard footwear provides protection against live electrical currents and meets ASTM F2892-18 EH standards