23501 Oboz Men's Sawtooth X Low Waterproof The Sawtooth X Low Waterproof is even more capable than Oboz's beloved original. It has a new outsole for superior traction and a new Adaptive Cushioning Technology midsole for an even smoother ride. But among all this new-ness it retains the same great fit and feel and their B-Dry waterproof technology, so you can be confident taking on the trail, puddle filled or otherwise. Oiled Nubuck & Cordura Fabric Mesh Upper TPU heel counter B-Dry Waterproof Membrane 100% RPET Repreve Laces 100% RPET Repreve Webbing Micro-injected PU window underlay O FIT Insole Sawtooth X ACT Impact rubber-blended adaptive foam Midsole TPU Shank Heel puck Trail Tread Rubber Outsole Strobel-Lasted Construction Fit Notes Lenth runs true to size. Form hugging heel cup, sculpted mid-foot, and a wider forefoot & toe box