It's no surprise that we love a good fashion collaboration [1], but when one of our favorite designers teams up with our favorite stores, our excitement increases exponentially. That's exactly how we felt upon viewing Rachel Antonoff's line for & Other Stories: the quirky-meets-cool-girl-meets-classic-feminine pieces are perfect for Summer, while many toe the line between professional and fun — just what we need when we're stuck in the office on a sweltering day [2]. Read on to view what will be available to shop online and in stores starting tomorrow, along with the cool campaign video created by Lena Dunham (need we say more?).