Our proprietary insole is what we’re known for. Molded to match the specific shape and construction of every pair we make, this purpose-designed technology delivers the kind of fit, feel and performance that’s unmatched in the industry. A proprietary rubberized EVA that adapts to varying terrain. This unique blend of dualdensity, lightweight cushioning system provides the wearer a high level of energy efficiency and a softer heel strike landing zone. Our proprietary Trail Tread outsoles feature more than just a rubber compound. Combining end-use driven design elements with specific rubber formulations, our Trail Tread outsoles are engineered to meet the variable demands of different environments and trail conditions. We know you are going to love the Sawtooth X Mid Waterproof. We’ve taken our adored Sawtooth II and given it a new, grippier outsole, a new Adaptive Cushioning Technology midsole for a smooth ride, and updated its styling for a boot that takes things up to the “x” degree.