The boot with a Metatarsal Guard that offers extreme impact protection. The Met Guard is a protective material that is soft and flexible but gets hard when impacted. It offers consistent impact absorption for dependable performance throughout the life of the boot. Breathable airmesh lining, easy to clean rubber overlay. Triple toe and quadruple rubber heel reinforcement. Steel shank, 5mm CR flex-foam, durable, quick cleaning non-slip sole. Material: Rubber.