Omni-Grip non-marking traction rubber Omni-Max system: Using a Techlite midsole, a specially designed heel and midfoot aids in creating a stable platform. Deflection domes in the forefoot and heel reduce load impact for better comfort and rebound. Flex grooves in the forefoot provide flexibility and better push off Techlite Eco insole using 20% recycled content for long lasting comfort Waterproof suede upper with metal hardware. Omni-Tech waterproof breathable construction.