Take the stage like Huntrix's lead singer with this kids' Rumi costume — a KPop Demon Hunters inspired stage outfit for girls, with an optional matching purple braid wig. It is a show-stopping pick for dress-up days, concerts-in-the-lounge-room, Halloween, birthday parties and Book Week 2026, available in six sizes for roughly 4 to 12 year olds (100 cm to 160 cm).
Why kids love this KPop Demon Hunters costume
Inspired by Rumi's iconic Huntrix stage look from KPop Demon Hunters
Choose the costume set on its own, or add the matching long purple braid wig
Vivid, detailed stage-outfit design that photographs brilliantly
Soft, lightweight polyester that is comfortable for a full school day
Six kids sizes from 4-5 years up to 10-12 years, sized by height
Rumi's sword available as a separate add-on for the full demon-hunter look
What is included
Pick your option from the drop-down: one Rumi costume set with wig, one costume set only, one wig only, or one toy sword only. The sword is a separate variant and is not included with the costume sets or wig.
Size guide
Size
Wearer height
4-5 Years
100-110 cm
5-6 Years
110-120 cm
6-7 Years
120-130 cm
7-8 Years
130-140 cm
9-10 Years
140-150 cm
10-12 Years
150-160 cm
Choose by the wearer's height for the best fit, and allow 1-3 cm variance from manual measurement.
A standout Huntrix costume for every occasion
KPop Demon Hunters is the character craze of the moment, and Rumi is the one every fan wants to be. This Huntrix costume works for school dress-up days and Book Week parades, Halloween, stage and dance performances, birthday parties, carnivals and conventions — or just for singing "Golden" at full volume at home. Pair it with a sibling's or friend's Mira or Zoey outfit for an instant group costume.
Care instructions
Cool gentle hand wash separately, do not bleach, do not tumble dry, and hang to dry in the shade. Store the wig on a stand or hook to keep the braid tidy.
Good to know
This is an unofficial, unbranded fan-inspired costume in the style of Rumi from KPop Demon Hunters. It is not an officially licensed product and is not affiliated with or endorsed by the rights holders. Colours may vary slightly from photos due to screen settings. Free standard shipping is available Australia-wide, with express post available at checkout.
Frequently asked questions
What is included with this Rumi costume?
It depends on the variant you choose: costume set with wig, costume set only, wig only, or Rumi's toy sword only. The sword must be purchased separately — it is not bundled with any costume set.
Does the Rumi wig come with the costume?
Only if you choose the "Costume Set + Wig" option. The wig is also available on its own if you already have the outfit.
What size should I choose?
Size by the child's height using the guide above — from 100 cm (about 4-5 years) up to 160 cm (about 10-12 years).
Is this an official KPop Demon Hunters costume?
No. It is an unofficial, fan-inspired dress-up costume and is not affiliated with or endorsed by the rights holders.
Is it suitable for Book Week 2026?
Yes — it is a popular pick for dress-up parades and character days. If your school asks for book characters specifically, check whether film-and-tie-in characters are welcome first.
How fast is delivery in Australia?
Orders ship with free Australia Post standard delivery, and express post is available at checkout for parade-week deadlines.
Order your Rumi costume today
Golden voice not included — everything else is ready to go. Add this KPop Demon Hunters Rumi costume to your cart today with free standard delivery across Australia. Sold by Lets Party, your Australian costume and cosplay shop.
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