The Vintage Denim Button Down One-Piece by Jonathan Simkhai features retro details from the snap front closure to the crisscross back straps to the belted waist. This swimsuit is UV protectant (UPF of 50+), quick drying, and chlorine resistant.
https://www.modalist.com/product/jonathan-simkhai-vintage-denim-button-down-swimsuit-JONA-9033SW-WAS/?source=indulgy&ic=SAT791