These Rocky Bigfoot Waterproof Insulated Outdoor Boots are made with guaranteed Rocky Waterproof construction. Water stays out, and your feet stay dry. Further water protection comes from the dual-density EVA rubber outsole. Additional comfort and protection comes from 400 grams of ThinsulateTM insulation to keep your feet warm on the hunt, on the hike, at work or hanging out. Now, since these are boots for big feet, these have an extra-wide toe box. These men's hikers are all-around durable. In addition to waterproof and extra-dense rubber soles, they're made with a quality full-grain leather upper and a high-abrasion heel guard that withstands tough and rough conditions.