We're big fans of functional fashion. Get some street action out of your swimwear this season with a maillot that doubles as a bodysuit. After all, you never know when a morning bike ride through Crissy Field will end with spontaneous swimming at Baker Beach, or when an epic night out will end with a late night hot-tub session. 

We love these six swimsuits for their flattering, beach-flirty designs, but also for their urban wearability. Paired with high-waisted shorts or a long and lean skirt, you'll see that these suits go well beyond the beach.

1. J. Crew Smocked Gingham Tank, $110

2. Paul Smith Floral One Piece, $159

3. Stussy Bustier One Piece, $97

4. Lenny Plunging Halter Maillot in Orange, $178

5. Salinas Surf City Maillot, $188

6. MICHAEL by Michael Kors Hammered Halter Swimsuit, $104

Lily Ko (lily.7x7 @ gmail.com) studied fashion design and merchandising at Central Saint Martins and the Academy of Art University. In addition to writing for 7x7, Lily is an editor at SF Station, works as a freelance stylist and covers food, fashion and fun on her blog, Curated SF.