FEATURES of the Bogs Men s Spruce Chelsea Boot 100% Waterproof gold certified leather upper Bloom eco-friendly algae-based EVA footbed that helps clean polluted water habitats Rebound cushioning in midsole provides all-day comfort and energy return Durafresh natural bio-technology activates to fight odors Outsole built with 20% recycled content Stretchy neo-tech provides easy entry Bogs max-wick evaporates sweat to keep feet dry Rubber pods on outsole provide slip resistance