NWOB Hoka Kaha 2 GTX Waterproof Hiking Boot Women’s Size 7 and 7.5 Conquer the trails in the cushy comfort of this robust hiking boot with a PFC-free water-repellent finish and Vibram® Megagrip lugs for all-terrain confidence. A Meta-Rocker outsole with integrated flex grooves propels each step, while anatomical construction and a SwallowTail heel make sure you're always fully supported. Waterproof: protects against rain, puddles and slush to keep feet dry in wet conditions Leather, synthetic and recycled-textile upper/synthetic lining and sole.