Onyx Classic One-Piece Swimsuit
Import duties included · Taxes calculated at checkout
Arrives Mon 10 Aug – Wed 19 Aug
Free shipping on orders over $75
30-day returns
Unworn, with the hygiene liner intact
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- Timeless and flattering silhouette
- Smooth and comfortable fabric
- Designed for all-day poolside wear
- Versatile and elegant aesthetic
Embrace effortless elegance with the Onyx One-Piece, a timeless silhouette designed for those who appreciate understated luxury by the water. Its clean lines and sophisticated cut offer a flattering look that transitions seamlessly from a morning swim to an afternoon spent lounging poolside.
Crafted from a smooth, comfortable fabric that moves with you, this swimsuit provides a secure fit for all-day wear. Whether you are retreating to a private cabana or taking a dip in the ocean, it remains a reliable staple for your coastal wardrobe.
Care +
Rinse thoroughly in cold water after each use and lay flat to dry in the shade.
Size & fit +
Sereia swimwear follows international sizing. If you're between sizes, or prefer a relaxed fit, size up.
In stock now: XL, S, M, L
Full size guide →Shipping & returns +
Tracked delivery worldwide. Free over $75, otherwise a flat $6.95.
Orders are prepared in 2–4 business days before they ship.
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