Your heart rate is pinned, as high as the air temp around you. Still a thousand vert to go and youâve got the legs to keep moving. Times like these youâll appreciate the lightweight, cool-and-comfortable inhaler ii low. Cool in the heat with heel- and toe-counter ventilation ports that let your feet inhale and exhale. Sticky rubber hangs on like a rock-climbing shoe, but the molded midsole protects like a burly running shoeâexactly what you need for going fast and low over dirt and rocks.