- S
- M - $80.77
- L - $80.77
Adult Harley Quinn Onesie Costume - DC Comics Fleece Jumpsuit with Hood
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
- Red and black fleece onesie jumpsuit with diamond appliqués
- Attached jester hood with pom-pom tipped horns
- White fleece collar with four pom-pom accents
- Black felt eye mask with elastic strap
This Adult Harley Quinn Onesie Costume brings DC Comics' most unpredictable antihero to your next cosplay event in plush fleece comfort. The full-length jumpsuit features Harley's signature red-and-black color-blocked panels with diamond motifs on the thighs and torso, plus an oversized jester hood tipped with white pom-poms.
Soft fleece construction throughout keeps you warm at outdoor Halloween events or air-conditioned convention halls. Center-front zipper runs collar to crotch for easy bathroom breaks. Elasticized cuffs at wrists and ankles lock in heat without riding up. The attached white collar carries four pom-pom accents, and the included eye mask completes the villain disguise.
Perfect For
Comic Conventions & Cosplay: A standout pick for Comic-Con, Supanova, or local pop-culture expos — comfy enough to wear for full-day event schedules.
Halloween & Costume Parties: Instantly recognizable DC villain for Halloween pub crawls, superhero-themed house parties, or comic-book character costume contests.
Casual Fandom Wear: Doubles as loungewear for movie marathons, gaming sessions, or cosy nights in when you want to rep your favorite Suicide Squad character.
How to Wear It
Pair with white sneakers or combat boots and loose blonde pigtails (wig or natural hair) for the Margot Robbie Suicide Squad aesthetic. Skip the jewelry — the pom-poms and diamond motifs carry the look. The eye mask slips on over your hair or can be worn pushed up on the hood when not posing for photos.
FAQs
Q: What size should I order?
Check the size chart for chest and height measurements. The onesie has a relaxed unisex fit with some stretch in the fleece — if you're between sizes and prefer a snugger fit, size down; for extra room or layering underneath, size up.
Q: Can I wear regular clothes underneath?
Yes — the fleece is roomy enough to layer over a t-shirt and leggings if you want extra warmth or modesty. The center-front zipper makes layering easy.
Q: How do I wash this? Is the fleece durable?
Spot clean or gentle hand wash cold, air dry flat. The pom-poms and appliqués hold up best with gentle care. Avoid machine washing to preserve the diamond motifs and elastic in the cuffs.
Q: Is this suitable for outdoor Halloween events in cooler weather?
Absolutely. The fleece fabric is warm and the full-length coverage keeps you comfortable in autumn/winter temps. Hood adds extra warmth without needing a separate jacket over your costume.
Care: Spot clean or gentle hand wash cold, air dry flat to preserve appliqués and pom-poms.
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.





