Upper: Climaproof membrane for waterproof protection in wet conditions. Upper: Primaloft insulation material for more warmth, even in wet conditions. Sockliner: Molded sockliner to enhance comfort and fit. Midsole: Adiprene insert for comfort and shock absorption. Outsole: Traxion-featuring Continental rubber for extraordinary grip. Primaloft Gold Weight: 100 gram. Weight: 16 oz / 443 gram. Leather / Synthetic.