There's no denying Hailey Baldwin loves a sexy bikini, but on occasion, she likes to switch it up. That's exactly what the 21-year-old did when she posted a photo on Instagram in this simple ivory Gucci one-piece swimsuit ($490). What you can't see is the crisscross detail on the back of the maillot. It's perfect because it adds that extra dash of sexy while still keeping you secure. If you are loving the sultry vibes Hailey's giving off in this swimsuit, keep reading to get your hands on the exact one, and shop some similar options.