3- Layer Merino Wool blend insulation with moisture wicking air mesh & perforated air trap foam. Castle ColdShield® Technology: Removable insole engineered from a moisture wicking wool blend with a metallic heat reflecting layer
Fully integrated Castle DRY-X® waterproof membrane. Weatherproof treated shell materials include 1000D nylon upper with Armstrong PU coated leather
The Atop® Reel Knob Lacing System adjusts fit with precision and allows for quick release
Atop® laces are lightweight, strong, and expertly configured for comfort and performance
Atop® low friction guides ensure a smooth closure, every time
Reflective elements
Molded high abrasion toe
Durable high traction rubber sole
EVA footbed offers all day comfort and thermal enhancement from the cold





