Features of the Bogs Men's Stockman Metguard PP Boot 100% Waterproof Made with seamless construction - 30% lighter and more durable Constructed with 7.5mm neo-Tech waterproof Insulation Rebound cushioning provides lasting comfort Durafresh bio-Technology that activates to fight odors Lined with Bogs max-wick to absorb and evaporate sweat Biogrip Outsole slip resistant Outsole Flex width insole system adapts to foot width Bloom eco-friendly, algae-based EVA Footbed that helps clean polluted water habitats Heel lock prevents heel slip and ensures optimal Fit Asymmetric composite toes that Are custom built for each size and to meet CSA standards Comfort rated to -72AdegF/-60AdegC Puncture proof metal free plate for protection