"The hotter the days get, the more and more I'm shopping for swimsuits. I have a ton of stringy and strappy bikinis, and I'm in the market right now for a sporty one-piece. I turned to none other than my favourite athletic brand, Girlfriend Collective. The brand's new Koi Oasis One Piece ($78) is chic, flattering, and comes in some seriously cool shades. Plus, I can already see myself throwing on a pair of denim shorts over it and heading out of the house." — KJ