This Kids Mermaid Swimsuit with Tail & Monofin turns pool parties into Under the Sea adventures—your kid actually swims with the monofin, not just poses. Three pieces: halter bikini top with tiered ruffles, low-rise bikini shorts, and a fitted tail with side zipper and attached fin pocket. Holographic scale print across the swimsuit, pink-to-blue gradient ombré on the tail with star appliqués.

What's in the Box

Halter-neck bikini top with adjustable ties and tiered ruffle flounce
Low-rise bikini shorts with elastic waistband
Swimmable mermaid tail with side zipper and foot pocket
Black flexible monofin (slots into tail)

Perfect for mermaid-themed birthday parties, pool parties, beach outings, or any day your kid wants to feel like an aquatic fairy tale character. The monofin gives real propulsion underwater—supervision required for safe swimming.

Parent FAQs

What size should I order?

The tail runs fitted through the hips and thighs (needs to be snug for the monofin to work), so measure around the widest part of your child's hips and compare to the size chart. If she's between sizes and comfortable in snug swimwear, stay with the smaller size; if she prefers looser fits or is still learning to swim with fins, size up.

Can she swim safely with the monofin?

Yes, but only with adult supervision and if she's already a confident swimmer. The monofin limits leg movement (both feet go in together), so she needs to be comfortable using dolphin-kick technique. Start in shallow water. The side zipper makes it easy to get out quickly if needed.

Care: Rinse in cool water after each swim (chlorine and salt can fade the holographic print). Hand wash the tail and monofin; bikini pieces are machine-washable on gentle. Hang to dry—don't wring the tail or the gradient may crease.

Kids Mermaid Swimsuit with Tail & Monofin - 3-Piece Swimmable Set