K-SWISS Men's Blade-Max Trail Shoe 100% Synthetic and mesh Rubber sole 12.2OZ, 375.80g. SUPERFOAM: A space-aged energy-return foam that resists compression and lasts longer providing cushioning and comfort. Midsole/Outsole: A bed of Superfoam sits on top of high-impact Blade-Max technology. A rock block protection plate protects the runner from bumps in the rocky road. Upper: A very durable and supportive upper featuring Ion Mask(ion-maskby P2i) water resistance and seamfree technology. FKS00183