Saucony Men's Xodus 4.0 Running Shoe 100% synthetic Imported Synthetic sole Waterproof and breathable GORE-TEX membrane 4mm heel-to-toe drop Toe-shield technology Pro-Lock midfoot support straps Gusseted tongue Gaiter compatibility ComfortLite molded foam sockliner External Bedrock Outsole rock protection plate PowerGrid heel insert Vibram XS-Trek outsole Get Saucony's utmost in protection on the trail with the heavy duty Xodus 4.0.