- Age 4-5 / blue - $45.09
- Age 5-6 / blue - $45.09
- Age 6-7 / blue - $45.09
- Age 7-8 / blue - $45.09
- Age 9-10 / blue - $45.09
Girls Mermaid Tail Swimsuit - 3-Piece Swimmable Costume Set with Monofin
DELIVERY
- Dispatch: Within 24 Hours
- Registered & Express Post for ALL Orders.
- Pick up is available.
- Easy 14 days returns and exchanges
RETURNS
If you do not like the product you can return it within 14 days - no questions asked. This excludes stockings, gloves, swimwear and clearance sale items. We have an easy and hassle-free return policy. Please look at our Delivery & Returns section for further information.
PRODUCT DETAILS
What's in the Box
- Halter-neck bikini top with bow detail and tie closures
- High-waisted swim brief with fish-scale print
- Full-length mermaid tail with side zip and flared flukes
- Black monofin (slides into tail pocket)
This Girls Mermaid Tail Swimsuit turns pool parties into underwater adventures — a 3-piece set with halter bikini top, high-waisted swim brief, and a full swimmable tail complete with monofin. The turquoise body shimmers with embossed fish-scale texture, while coral-pink fin accents along the hips and tail flukes catch the light like a tropical reef fish.
The tail zips up the side from waist to thigh for easy on/off, with an integrated pocket at the bottom to hold the included monofin securely. Halter straps tie at the neck and mid-back for an adjustable fit. Made from stretch polyester-spandex swim fabric that holds up to chlorine and saltwater — this one's built for actual swimming, not just posing by the pool.
Perfect For
Pool Parties & Beach Days: A natural pick for mermaid-themed birthday parties, aquatic play dates, or any day your kid wants to practice their mermaid kick in the backyard pool.
Costume Swimming Events: Works brilliantly for swim school costume days, kindy splash parties, or holiday camp dress-up swims where functional swimwear meets fantasy fun.
Book Week & Storybook Parades: Pairs with any underwater fairytale or ocean-adventure book for Book Week — think classic mermaid stories, picture books about sea creatures, or coastal-themed chapter books.
How to Wear It
Slip the monofin into the tail's bottom pocket before getting in the water. Zip the tail up the side, tie the halter straps snugly at neck and back, and you're ready to swim. Skip the flower crown from the photos (styling prop only) — wet hair and a big smile are all the accessories needed.
Parent FAQs
Q: What size should I order?
Check the size chart for waist and hip measurements — the swim brief is elasticized but the tail's fit through the hips is more structured. If your child is between sizes, size up for comfort in the water.
Q: Can she actually swim in this, or is it just for play?
She can swim in it — the monofin gives her propulsion for dolphin kicks, and the tail's stretchy fabric allows leg movement. Best for confident swimmers who can handle the added resistance; not recommended for beginners still learning strokes.
Q: How do I wash this? Will the scale print fade?
Hand-wash in cold water with mild detergent and hang dry to preserve the embossed scale pattern. Avoid the dryer and harsh pool chemicals where possible — rinse after each swim to extend print life.
Q: Is the monofin safe for pool use?
The included monofin is flexible rubber/silicone designed for swim play. Always supervise mermaid tail swimming — it restricts leg movement, so your child needs to be a capable swimmer before using it in deep water.
Care: Hand-wash cold, hang dry. Rinse after each swim to prevent chlorine damage.
SHIPPING & RETURNS
Returns Policy
We have a 14-day return policy, which means you have 14 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at sales@kidsbookweekcostumes.com.au.
If your return is accepted, we’ll send you a return form, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
Shipping
We offer Flat Rates $9.8 for Registered Post or $14.8 for Express Post within Australia.



