As an entry-level model for hiking in high alpine regions and on developed trails, the Air Revolution 1.5 impresses with its Air Revolution® technology. The tongue is open at the top, allowing fresh air to be drawn into the shoe during the landing phase and warm air to be expelled during the push-off phase. The extended two-zone lacing system enables a perfect fit to the foot. The free-running Speedwire of the variofix® system wraps evenly and snugly around the heel, providing excellent support in the shoe. The Vibram® cleats-grip sole offers traction and secure footing thanks to its special tread design. With GORE-TEX, your feet are guaranteed to stay dry.