- Age 2-3
- Age 4-5
- Age 6-7
- Age 8-9 - $40.69
- Age 10-11 - $40.69
- Age 12-13
Kids Sea Monster Costume - Blue Scaled Fish Creature Jumpsuit with Tail
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
- Electric blue sea monster jumpsuit with attached tail, gloves & back zip
- Sculpted purple-maned creature mask with mesh vision panels
This Kids Sea Monster Costume brings an ocean adventure character to life — electric blue scales cover the full-body jumpsuit, with a deep purple dorsal fin running down the spine and a long tail that holds its shape as your child moves. The sculpted mask has oversized friendly green eyes, a toothy grin, and a wild purple hair mane that stands out at any Book Week parade.
The scale pattern is printed with dimensional shading so it looks textured without bulk, and the jumpsuit includes trompe-l'oeil shorts and belt details that make the costume look like clothing over sea-creature skin. Purple gill frills at the neck, webbed glove fingers, and a tail fin with matching purple membrane complete the underwater transformation. Back zipper makes it easy on and off — no wrestling with foam or velcro mid-morning.
Perfect For
Book Week & Ocean-Themed Literature Days: A natural pick for ocean adventure stories, friendship tales set by the sea, or any Book Week theme celebrating animated film adaptations of children's stories.
100 Days of School & Character Parades: Stand out at school dress-up days, kindy character parades, or costume parties where your child wants to go as a friendly aquatic creature.
Halloween & Imaginative Play: Works for trick-or-treating (the tail doesn't drag), backyard ocean adventures, or any time your kid wants to be a scaly underwater explorer.
How to Wear It
Pair with comfortable sneakers or sandals (the jumpsuit covers feet but you can wear shoes over the fabric). Skip accessories — the costume is all-in-one, and the mask provides the full character transformation. Hair can be tucked inside the mask or left out the back.
Parent FAQs
Q: What size should I order?
Check the size chart for chest and height measurements. The jumpsuit runs true to size through the torso with stretch for movement. If your child is between sizes or tall for their age, size up — the tail adjusts and the gloves have some give.
Q: Can they see clearly through the mask?
Yes — the mask has mesh vision panels behind the green eyes. Test it at home first so your child gets comfortable with the peripheral view before wearing it all day at school.
Q: How do I wash this? Is the mask durable?
Hand wash the jumpsuit in cold water and hang to dry. The mask can be spot-cleaned with a damp cloth. The foam construction holds up well to normal wear, but avoid rough outdoor play that might snag the fabric skin.
Q: Is this suitable for Book Week if we need an ocean or friendship story?
Absolutely. It pairs with any ocean adventure, sea creature tale, or animated film about friendship and self-discovery — the friendly monster design reads as "character from a story" rather than generic sea creature.
Care: Hand wash jumpsuit, spot-clean mask, air dry both.
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.