- Age 4-5 - $38.49
- Age 5-6 - $38.49
- Age 6-7
- Age 7-8 - $38.49
- Age 9-10 - $38.49
Kids Swimmable Mermaid Tail Costume - Rainbow Pool Swim 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
- Rainbow halter bikini top with adjustable tie straps
- Matching bikini bottoms in rainbow polka dot print
- Fitted mermaid tail skirt (worn over bottoms) with fluke opening
- Black monofin with neoprene covering and ankle cuffs
This Kids Swimmable Mermaid Tail Costume turns pool days into underwater fantasy adventures — real swim-grade rainbow tail with an unbreakable monofin that lets confident young swimmers glide like actual mermaids. The tail slips on over the bikini bottoms and the monofin slides into the fluke for propulsion.
Vibrant rainbow gradient runs pink-purple-blue-turquoise-yellow-green with polka dots throughout, seamless colour transitions from waist to fin. Stretchy swim fabric moves with your child in the water. Monofin has neoprene ankle cuffs for secure, chafe-free hold and a rigid polyurethane core strong enough for propulsion but safe for young swimmers. Tail designed for quick removal.
Perfect For
Pool Parties & Beach Days: A showstopper for mermaid-themed birthday parties, resort pools, or beach outings where your child can actually swim in full mermaid mode.
Swim Lessons with Imaginative Play: Great for confident swimmers who've mastered freestyle and want to add mermaid skills — helps build core strength and leg coordination through monofin propulsion.
Dress-Up & Photo Sessions: Doubles as costume for underwater photography, aquatic-themed school projects, or backyard mermaid play when the tail's worn without the fin.
How to Wear It
Put on bikini first, then slip tail over legs and pull up to waist. Slide feet into monofin's ankle cuffs, then tuck fin into tail's fluke opening. Pair with goggles for underwater visibility. Supervise closely — this is real swim equipment, not a floatation device.
Parent FAQs
Q: What size should I order, and does my child need to be a strong swimmer?
A — Sizing runs from ages 4–10 approximately (check size chart for height/chest). Your child MUST be a confident, unassisted swimmer — monofin swimming requires core strength and breath control beyond beginner skills.
Q: Can the tail be worn without the monofin for safer play?
A — Yes, the tail works as standalone dress-up without the fin inserted. For actual swimming with the fin, adult supervision and open water (not crowded pools) are essential.
Q: How do I wash this, and will the rainbow colours fade in chlorine?
A — Rinse in cool fresh water immediately after pool/beach use. Hand wash with mild detergent, air dry flat. The swim-grade fabric resists fading but chlorine exposure over time will dull any bright swimwear.
Q: Is this allowed at public pools, and how quickly can my child get out of it?
A — Some pools restrict monofins during busy hours — check local rules. Tail removes in seconds by pulling down; fin slides off ankles. Practice emergency removal on land before first pool use.
Care: Rinse after each swim, hand wash, air dry. Store monofin flat to maintain shape.
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.