With Coachella in the rearview and Governors Ball, Panorama, and Lollapalooza on the horizon, festival season is in full swing. As all pro festival-goers know, the key to looking street-style worthy after waiting hours in the sun for Haim is a good hands-free bag. This year our pick for the festival Cool Girl is the Rihanna-inspired MCM Rockstar Vanity Case. It's big enough to store your lip gloss, sunscreen, mineral water spray, and other festival necessities, but won't weigh you down as you hustle from stage to stage. Most importantly, the Rockstar Vanity Case, which comes in cognac or classic black, is gorgeous and will instantly elevate your festival-wear, whatever your style. RiRi has rocked it with everything from a floral dress to black sweats. Ladies, it's officially time to retire the fanny pack.