Description of GoLite Sun Dragon Shoes Light, quick and downright fast, Speed is the currency of race day. A legend at the epicenter where the sport began and towering icon of formidable terrain. The Matterhorn challenges anyone with the will to get up and down as fast as they can. The Skyrunner's race began there. The GoLite Sun Dragon is just the shoe for the occasion. The patent-pending Isomorphic Suspension(TM) system is designed specifically for vertically rugged terrain above the timberline. When met with uneven terrain, the independent springs, or Trail Claws, each react with their own level of displacement. By isolating the uplift, Trail Claws fill the space created by bumpy ground, rather than balancing the foot against a traditional flat and wobbly outsole plate. The result is improved stability on the trail. Experience the superior grip and comfort of trail claws in the light and easy GoLite Sun Dragon Shoe. Features: High-altitude racer Suspension: Isomorphic Midsole: Symmetrical Trail Speed Outsole Weight: 10.9oz Awards: National Geographic Adventure Magazine Editor's Pick