It's rare that we appear as pulled-together running errands as we'd like to, but if we stick to Katie Holmes's dressed-down cute formula, it's seeming entirely more possible. Katie's striped sundress is the kind that looks as sweet at the grocery store, where she was spotted shopping with Suri in NYC, as it does on a beach outing. The best part about Katie's look? You can easily style her dress up or down depending on the occasion at hand. Wear it with casual flats for running errands, à la Katie, or opt to dress it up with wedged espadrilles for any Summer party in your future. Just shop our picks to channel the same breezy-sweet style.