In stock
Girls Swimmable Mermaid Tail Costume with Monofin - Kids Bikini Set
- SKU:
- tt2024+tt2008
Size Chart
Same Day Dispatch
Order by 2pm AEST
Easy Returns
14 days
Melbourne Stock
Fast local delivery
Product Details
What's Included
- Halter Top Bikini (stretch material)
- Pants with Swimmable Tail (zip on the side)
- Black Monofin
The Girls Swimmable Mermaid Tail Costume with Monofin is a three-piece set designed for actual water play. Turquoise-to-blue gradient with embossed scale texture runs across all pieces, finished with translucent purple-and-blue iridescent fins on the tail fluke.
Key Features
- Fully swimmable design — monofin included for proper leg movement in water
- Side zip on tail for quick entry and exit without struggle
- Turquoise-aqua-teal gradient mimics ocean depth effect with iridescent highlights
- Textured scale print across all three pieces for realistic mermaid look
Perfect For
Pool Parties & Beach Holidays: Swimmable construction means she can actually play in the water while dressed as a mermaid — no costume change needed for pool time at birthday parties or resort swimming.
Mermaid-Themed Birthdays: Ideal for the birthday girl at an under-the-sea party, mermaid lagoon celebration, or ocean adventure theme where costume doubles as functional swimwear for water games.
Cosplay & Photo Shoots: Works for character dress-up events, fantasy photoshoots at the beach, or cosplay conventions with water features — the iridescent fluke creates dramatic movement shots.
How to Wear It
Put on bikini top and bottoms first, then step into tail and zip closed. Insert monofin into tail cavity before entering water for swimming propulsion. Pair with seashell hair clips or starfish headband for full mermaid effect.
Frequently Asked Questions
Is this actually swimmable or just for dress-up?
Fully swimmable. The included monofin fits inside the tail and allows proper leg movement for swimming. All pieces are made from swimwear fabric designed for chlorine and saltwater.
Can she walk in the tail or only swim?
The monofin and tail design are meant for swimming propulsion. Walking is difficult in a mermaid tail — plan for her to sit poolside or hop short distances when out of water.
Looking for more options? Browse all costume bikinis or our mermaid costumes range.
Shipping, Returns & Support
Shipping, Returns & Support
We dispatch quickly from our Melbourne warehouse and offer reliable delivery across Australia. Easy returns and fast support are available if you need help.
Delivery
✔ Dispatch within 1 business day
✔ Same day dispatch before 2pm
✔ Australia-wide delivery with tracking
Returns
✔ Easy 14-day returns & exchanges on eligible items
When will my order arrive?
Most orders arrive within 2–6 business days depending on your location.
Can I return this item?
Yes, we offer easy 14-day returns on eligible items.
Need help choosing the right size?
Ask our assistant — it checks sizes and stock instantly, and passes you to our team if needed.
Or email: sales@costumesinaustralia.com.au
Delivery timeframes shown anywhere on our website (including the postcode delivery estimator) are estimates only, based on Australia Post's published delivery standards, and are not guaranteed. We dispatch from our Melbourne warehouse; once an order leaves us, delivery is carried out entirely by Australia Post and is outside our control. We cannot be held responsible for delays caused by Australia Post, weather, peak or seasonal volumes, incorrect or incomplete addresses, or public holidays. Such delays are not grounds for a refund, replacement or cancellation.
Reviews
Customer Reviews
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Top customer reviews
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Mermaid swim set 0 people found this helpfulHappy with product hasn’t been worn yet so see how the stitching goes when it is but delivery was great got it within 47 hrs thanks
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Fantastic Product 0 people found this helpfulAbsolutely love ours. We bought two sets and both are beautifully made and vibrant in colour. My girls love them.
