Adrenaline GTS 10 Woo Hoo! Runner's World gave the GTS 10 its "Best Update" award in the Winter 2010 Shoe Guide.

The Beast® and its sister shoe Ariel® have long served as motion-control superheroes, coming to the rescue of runners with low or flat arches and excessive pronation. Able to leap tall buildings in a single bound? Not quite. But their full-length MoGo midsoles do offer increased energy return for extra spring in your step—plus maximum-strength support and long-lasting cushioning in an orthotics-adaptable shoe. As for whether they’ll help you run faster than a speeding bullet: They're definitely a first step!