Low Water Absorption Materials and Waterproof Leather are Quick Drying AEGIS™ Microbe Shield for Odor Control Protects Against Bacteria that Cause Odor Active Drainage System Featuring Drainage Ports Promotes Low Water Absorption and Maximum Water Drainage Scuff Rubber Mudguard Offers Extra Durability and Traction Removable Contoured Exposed EVA Footbed For Ultimate Low Water Absorption and Maximum Water Drainage New Hydro-Grip™ Rubber Traction Compound is the Ultimate Performance Traction Outsole Compound Non-Marking Rubber Outsole with Quadro-Grip Multi-Directional Wave-Siping™ for Added Wet / Dry Traction