If you prefer to do your running off the beaten path, reward your feet with the Salomon Speedcross 2 Trail-Running Shoes ($110). Specially designed for off-road racing, the Speedcross 2 features nylon mesh uppers with synthetic leather overlays for fast drying and maximum breathability, a Quicklace lacing system, a Sensifit design that helps minimize foot slippage, and more. They're like mud tires for your feet.