Black oil tanned leather and stretch neoprene.Soft Toe styles meet ASTM F2892-18 standard.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 for added comfort and support.Dual density slip-resistant rubber outsole with maximum surface contact.FastDry Technology Lining wicks away sweat for comfort.