We use a high friction carbon rubber compound in our outsoles. Proprietary to Oboz, it provides great traction and durability, and it’s non-marking. We've also strategically placed propulsion and braking lugs to give you the highest return for your efforts. All of our outsole packages come complete with a graded nylon shank to control lateral and torsional flexing. For a more detailed look at specific outsole packages, take a look at the individual outsole pages.