Girls Rainbow Mermaid Swimsuit Set with Swimmable Tail and Monofin

The Girls Rainbow Mermaid Swimsuit Set is a three-piece ensemble featuring a halter-neck bikini top, matching bottoms, and a full swimmable tail with an integrated monofin. The rainbow gradient flows from purple through blue, turquoise, yellow, pink and coral in an ombre effect, finished with an iridescent fish-scale print across all pieces and a holographic multi-pointed tail fin.

The halter top features layered ruffle tiers and adjustable neck ties for secure fit. The mid-rise bikini bottom pairs with the full mermaid tail, which extends from the waist to a pointed fin with individual striped rays for realistic underwater movement. The set works as a standard two-piece bikini for regular swimming, or add the tail for full mermaid transformation at pool parties, beach outings, or themed birthday celebrations.

What's Included

• Halter-neck bikini top with ruffle tiers and adjustable ties
• Mid-rise bikini bottom with elastic waistband
• Swimmable mermaid tail with side zip closure
• Black monofin insert for tail fin section

Key Features

• Rainbow gradient ombre effect across purple, blue, turquoise, yellow, pink and coral tones
• Three-dimensional iridescent fish-scale print on bikini pieces and tail body
• Holographic multi-pointed tail fin with striped rainbow detail
• Adjustable halter neck ties for custom fit
• Monofin provides swimming propulsion while keeping legs together
• Stretch swimwear fabric (/ blend) for comfort and flexibility

Perfect For

Pool parties, mermaid-themed birthday celebrations, beach play, swimming lessons with fantasy element, cosplay events, dress-up play, tropical-themed gatherings, summer costume occasions.

Frequently Asked Questions

Care:Rinse in cold fresh water after each use to remove chlorine or salt. Hand wash in cool water with mild detergent. Do not wring or twist tail fin. Lay flat to dry away from direct sunlight. Do not tumble dry or iron.

Shop more swimwear and discover our mermaid costumes collection.