The mid-height Siren combines hiking-boot support with athletic-shoe performance and high feminine style. It’s fully waterproof with breathable mesh for ventilation and waterproof leather for support and durability. Vibram Siren sole with TC5+ rubber gives you the stability, grip and performance for a variety of high-demand activities. Lots of padding around the ankle. Q-Form triple-density molded footframe promotes healthy alignment for a woman’s stride. Features: Waterproof Construction. Waterproof Leather. Waterproof Mesh Lining. Breathable Ventilator Bellows Tongue. Rubber Toe Bumper/Heel Counter. 7.5mm Narrow Gauge Webbing. 4.5mm Anatomical Footbed. Nylon 6.6 Injection Molded Arch Shank. Compression Molded EVA Footframe. Q-Form Triple Density Compression Molded EVA Footframe. Air Cushion Midsole. 5mm Sole Lug Depth. Vibram Siren Sole/TC5+ Rubber.