Fresh air with every step: Featuring our brand-new Stepvent™ technology, our Downdraft collection is our first-ever waterproof boot that BREATHES. Yes, it's true. These boots feature an internal metatarsal guard powered by SKYDEX Met Guard impact protection. They have an Anti-Fatigue Technology polyurethane footbed for shock absorption and energy return. They are also breathable and feature moisture-wicking lining with anti-microbial treatment for odor control.