Bellows tongue to keep debris out. Electrical hazard protection meets ASTM F2413-11 standards to protect the wearer against open circuits. Heat resistant outsole compound tested at 300°C. Vibram® soles provide sure traction on both wet and dry surfaces in even the most extreme temperatures. No company does a better job of creating lug patterns that provide stability in all conditions, with no lugs placed under the arch, so your foot flexes more naturally for greater comfort.
Every Vibram® sole is made with our innovative rubber compounds, then tested in the most extreme conditions to give you the best step possible. Merrell Air Cushion® in the heel absorbs shock and centres the heel on contact for added stability. Ripstop fabrics are woven fabrics, often made of nylon, using a special reinforcing technique that makes them resistant to tearing and ripping.Advanced removable contoured insole with enhanced heel and arch structure and integrated cushion pod for medium support. MEN'S SIZE CHART - SHOES.