What's in the Box

Halter bikini top in shimmery stretch fabric
High-waisted mermaid tail skirt with side zip
Black monofin with ankle retention

This Kids Swimmable Mermaid Costume turns pool time into an underwater adventure, with an iridescent gradient tail that shimmers pink, purple, and blue as your child moves through the water. The halter top, high-waisted tail skirt, and slip-on monofin are all designed to be worn in the pool — proper swimwear, not just dress-up.

The tail skirt sits over the bikini bottom and features a side zip so the monofin slips in easily. Scale-patterned fabric catches the light beautifully, and the flared fin gives a realistic mermaid silhouette. Stretchy comfortable wear means she can swim laps, dive for toys, or just lounge by the pool edge in full costume mode.

Perfect For

Pool Parties & Beach Outings: A showstopper for mermaid-themed birthday parties, summer pool days, or beach dress-up where she actually wants to get in the water.

Underwater-Themed Dress-Up: Works for any ocean or sea creature parade at kindy, Book Week if paired with a storybook mermaid character, or school swimming carnival costume events.

Backyard Water Play: Turns the inflatable pool or sprinkler session into a full mermaid experience — functional swimwear that doubles as imaginative play costume.

How to Wear It

Wear the bikini top and bottom as you would regular swimmers, then pull the tail skirt on over the top. Slip the monofin on last — the side zip on the tail lets you position it correctly. Pair with a floral crown or seashell hair clips for the full mermaid princess look.

Parent FAQs

Q: What size should I order?

A: Check the size chart for chest and length measurements. If your child is between sizes, we'd go up one — the stretchy fabric gives some flex but you want the tail long enough to cover the monofin comfortably.

Q: Can she actually swim in this, or is it just for photos?

A: She can swim in it — the monofin is designed for water use and the tail fabric is swimwear material. Supervise closely though, as the monofin changes how she kicks and moves in the water. Not for deep water or non-swimmers.

Q: How do I wash this after chlorine or saltwater?

A: Rinse in cold fresh water immediately after each swim to get the chlorine or salt out. Hand wash with mild detergent when needed, then air dry flat. Don't wring or twist the tail — the holographic finish can crease.

Q: Is the monofin safe for kids who are learning to swim?

A: The monofin is best for confident swimmers who can already kick and tread water — it restricts leg movement so she needs to be comfortable in the pool. Always supervise, and remove the fin if she's tired or struggling.

Care: Rinse after each swim, hand wash, air dry flat.

Kids Swimmable Mermaid Costume - 3-Piece Pool Party Tail Set