Construction: 3-Layer Merino wool blend insulation with wicking air mesh and perforated air trap foam. Castle Cold Shield® Technology: removable insole, wicking wool blend with metallic heat reflecting layer
Waterproofing: Fully integrated Castle DRY-X® waterproof membrane. Weatherproof treated shell materials include 1000D nylon upper with Armstrong PU coated leather

• Reflective elements
• Molded high abrasion toe
• Castle Quick Connect buckle system
• Snow shield gaiter with bungee cord lock
• EVA footbed offers all day comfort & thermal enhancement from the cold
• Comfort Rating: -60*F / -51*C
• Replacement insoles available