Shoe shopping online is challenging in general, but finding the right flats can feel impossible - that is, until you learn this hack. Reviewers do the hard work for you, testing shoes for work, walks and more, and then reporting back. These 17 beloved flats are approved by fashionistas who return to the site to rave about its comfortable fit, feel and design. Since flats are the biggest spring trend, there's never been a better time to snag a pair than right now. Meghan Markle, Katie Holmes and Margot Robbie are just a few A-listers we've spotted sporting the relaxed look.