Shop One-Pieces | Low-Back

Low-Back One-Piece Swimsuits with an Effortless, Open-Back Fit

Our low-back one-piece swimsuits are made for merbabes who love a classic one-piece shape with a bold, open-back twist. These styles feature plunging backs, scoop-back silhouettes, strappy details, and signature Salty Mermaid finishes that create a sleek, elongated look from every angle.

This collection brings together low-back one-pieces from across our favorite swim collections, including solid color swimsuits, shimmer fabrics, tropical prints, sporty banded styles, logo strap details, and statement seasonal drops. Each suit has its own unique fit and bottom coverage, from cheeky and semi-cheeky to semi-Brazilian and Brazilian cuts, but they all share that open-back silhouette that feels flattering, feminine, and easy to wear.

Whether you’re looking for a simple solid one-piece, a luxe poolside swim look, or a vacation-ready style that doubles as a bodysuit, our low-back one-pieces are designed to hug, lift, and show off just enough. Think timeless one-piece swimwear with a confident Salty twist — open in the back, sculpted through the body, and ready for wherever the sun takes you.