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8 Locations in New South Wales.

07B61AC7-D99B-4E1B-9A37-C58821320079

Kids Costumes

497 products
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    Girls Aqua Mermaid Costume - Medium
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    Girls Mermaid Costume - XL
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    Girls Mermaid Costume - XXL
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    CHILD MERMAID
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    Barbie Dress-Up Trunk With Accessories - 4 - 6 Years
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    Toddlers Marshall Air Motion Paw Patrol
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  • 5D1A8E53-7A17-4FDD-8AC8-4286FD6B3124 6 in stock
    Sonic The Hedgehog Kids Accessory Set
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    Kids Tails Sonic The Hedgehog Deluxe Costume - Size 8-10 Years
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    Children Red Ninja Assassin Costume - 10 - 12 Years
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    Boys Yellow Wizard Costume - Size 6-9 Years
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    Boys Green Wizard Costume - Size 6-9 Years
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    Girls Blue Dorothy Wizard of OZ Costume
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    Children Yellow Wizard Costume - 10 - 12 Years
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    Egyptian Girl Costume - 10 - 12 Years
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    Egyptian Pharaoh Boy Costume - 6 - 8 Years
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    Egyptian Pharaoh Boy Costume - 8 - 10 Years
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    Egyptian Boy Costume - 6 - 8 Years
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  • 5D1A8E53-7A17-4FDD-8AC8-4286FD6B3124 7 in stock
    Velociraptor Deluxe Lenticular Kids Costume - Size 3-5
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    Boys Blue Dinosaur with Tail Costume
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    Boys Deluxe Dinosaur Costume - 155cm
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    Girls Minion Costume - Size 3-4 Years
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    Boys Star Wars Brown Hooded Cape Costume
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    Children Wizard Costume - 4 - 6 Years
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    Girls Police Woman Costume Kit - L
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    Girls Police Woman Costume Kit - XL
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    Kids Police Officer Costume - Large
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    Kids Doctor Costume - 5 - 6 Years
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    Kids Doctor Costume Kit
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  • Kids Theatre Doctor Costume
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    Children Silly Cat Costume - 7 - 9 Years
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  • 5D1A8E53-7A17-4FDD-8AC8-4286FD6B3124 7 in stock
    3 Piece Cat Dress Up Accessories
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    Girls Naughty Cat Deluxe Costume - M
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    Womens Harley Quinn Tween Costume - M
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    Kids Super Hero Dress Costume - Medium
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    Kids Batman DOJ Deluxe Costume - S
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    Boys Batman Dark Knight Dress Up Set - S
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    Girls Pastel Rainbow Unicorn Costume - Dress, Wings & Headband
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    Girls Toddlers Little Unicorn Dress Costume
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  • 5D1A8E53-7A17-4FDD-8AC8-4286FD6B3124 6 in stock
    Children Nurse Costume - 10 - 12 Years
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    Kids Nurse Costume Kit
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    Boys Alien Full Body Suit Costume
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    Girls Farm Cowgirl Costume
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    Children Astronaut Costume - 10 - 12 Years
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    Boys Toddlers Lion Jumpsuit Costume
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    Toddlers Deluxe Shark Costume
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  • 5D1A8E53-7A17-4FDD-8AC8-4286FD6B3124 6 in stock
    Super Hero Spiderman Boys Costume - Medium
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    Kids Red Ninja Costume
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    Kids Black And Yellow Ninja Costume
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    Toddler Green Fairy Costume
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    Kids King Costume
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Kids Costumes

Kids costumes for Book Week, Halloween, school dress-up days and birthday parties, with more than 500 outfits and kits in the range. Prices run from $3.49 to $149.99, and most costumes are listed by age band or size so you can pick the right fit before you buy. The Base Warehouse has been dressing up kids across New South Wales since 1989.

Browse by age and group

What is in the kids costumes range

Storybook and career characters sit alongside Halloween costumes. The Girls Storybook Witch Costume Set comes in Large, XL and XXL at $29.99, the Chef Jacket & Hat Costume is $41.99 in 4 - 6 Years and 6 - 8 Years, and the Sustainable Fire Fighter Printed Top & Hat Costume is $35.99 from 2 - 3 Years. For Halloween there is the Kids Deluxe Glow Skeleton Costume - M at $35.99 and the Black Vampire Cape Kids Costume - Medium at $9.99. Dinosaur fans can choose the Toddler Dinosaur Costume at $23.99 or the T-REX INFLATABLE CHILD COSTUME - ONE SIZE 6+ at $149.99, and our dinosaur party range has more to match. Kits keep costs down: the 3 Piece Kids Pirate Dress Up Kit and 3PC FAIRY DRESS UP are $11.99 each, and the Kids Super Spider Hero Costume starts at $11.99. Harry Potter fans will find the Kids Gryffindor Deluxe Child Robe - Size 6+ Years at $44.99.

How to size a kids costume

Sizes are shown three ways in the titles: age bands like 4 - 6 Years or 10 - 12 Years, letter sizes like M, L, XL and XXL, and height, such as the Boys Army Boy Deluxe Costume - 140cm. Measure your child's height and compare it with the clothes they wear now; if they sit between two sizes, go up, because costumes are pulled on over a T-shirt and shorts. Try it on a few days before the event so there is time to adjust. For a witch or wizard, finish with a hat and broom from our witches and wizards range, and for any face paint, do a patch test first and follow the packet directions. Browse all costumes for kids and adults.

Shop kids costumes in store or online

Book Week, Halloween in October and end-of-year concerts keep the dress-up calendar busy, so plan costumes a few weeks out. For October, see our boys, girls and toddler Halloween costumes. Order online for delivery Australia wide, or shop in person at any of our stores across New South Wales: Gregory Hills, Brookvale, Menai, Erina Fair, Lake Haven, Tuggerah and Wagga Wagga.