23502 Oboz Women's Sawtooth X Low Waterproof The Sawtooth X Low Waterproof is even more capable than our 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 Oboz's B-DRY waterproof technology, so you can be confident taking on the trail, puddle-filled or otherwise.