Unique style that works on and off the job is fused with ultimate comfort in the Thunderhead. A CarbonMAX toe-cap is lighter weight, thinner for a better fit and ASTM approved, while the multi-layer construction of EPX technology conserves and returns energy with a stabilizing midsole, cushioning midsole and an EPX footbed.• Removable dual-density PU EPX™ Anti-fatigue footbed• Wolverine CarbonMAX nanotechnology safety-toe provides comfortable, lightweight protection• Breathable mesh and TPU upper• Moisture managing mesh lining to keep feet dry and comfortable• Ultra-Light Compression Molded EVA midsole• Rubber lug outsole for great traction on a variety of surfaces• Nylon shank for support• Weight: 19.72 oz• Rated ASTM F2413-11• Backed by Wolverine's 30 day comfort guarantee