Safety: Electrical hazard protection ASTM F2892-18 EH Design: Durable, full-grain leather upper Danner® Dry waterproof protection keeps your feet dry and comfortable Fiberglass shank adds support and stability In-Shoe Comfort: 400g Thinsulate® Ultra Insulation keeps your feet warm Danner® Dual Layer Comfort footbed with memory foam and PU provides instant and long-lasting comfort Memory foam strobel sock offers additional cushioning underfoot PU midsole offers shock absorption and lasting rebound Durability & Traction: Danner® Caliper oil-and-slip-resistant rubber outsole offers versatile indoor and outdoor traction with a low-profile 90º heel Additional Details: Weight: 56 oz