Techlite™ lightweight midsole for long lasting comfort, superior cushioning, and high energy return., Omni-Grip™ non-marking traction rubber, Leather upper, synthetic toe cap and heel for protection, durability, and a fleece collar. Critical insulation. Omni-Heat™ reflective liner. Omni-TECH™ waterproof, breathable, seam-sealed membrane, bootie construction.