Peg your heart rate, eye your summit, and let the Inhaler II Mid do its thing. The GORE-TEX® waterproof, breathable liner with Extended Comfort Technology, sits just behind expansive air-mesh panels and 1.6mm leather, breathing as you bust out the effort. Ventilation ports at the toe and heel help keep the airflow high, making the Inhaler II Mid the perfect desert boot. Below all this respiration is a Vibram® Pneumatic sole, featuring Megagrip compound rubber -- just the kind of grab you'll need covering the miles. GORE-TEX® with Extended Comfort Technology. Dual Density EVA Footbed. Vasque Exclusive Vibram® Pneumatic with Megagrip Compound. Fit: True to Size Insole: EVA Outsole: Vibram® Pneumatic Upper: Waterproof Leather/Air Mesh