Here's a shoe that not only caters to the natural movements of your feet, but also delivers a nice energy-return via responsive cushioning. It's great for long runs, and the Solar Propulsion Rail keeps your foot well positioned for boosts of speed. The brand's Torsion System offers stability as you run in these 10.8-ounce shoes. These shoes are available in all sorts of fun color combinations, so you'll have no problem finding a pair that matches your sense of style.