The RAT represents the toughest boot components in the world, all stitched together to create one ultra-rugged war boot. 1000 Denier nylon, full-grain nubuc, and reinforced leather overlays create a fortress of protection and support. Underneath, you’ll find Vibram 360 outsoles with Dri Ice for unrivaled flexibility and traction in frigid condition. There’s nothing the RAT can’t handle.