Who needs it: Committed fitness walkers. What it offers: This shoe may be pricey, but according to our testers it's worth every penny. They rave about the comfort, fit, and style of the Biom Walk. The seamless leather upper "doesn't rub or chafe" and "molds to the foot." The midsole provides "phenomenal support" without being too stiff. As one walker puts it: "The sole feels flexible, which helps me roll from step to step." ($195; zappos.com).