
- Shirt
- Wig
| Chest | 51 1/4" |
| Sleeve Length | 9 1/2" |
| Shirt Length | 28 1/4" |
- 100% polyester
- Jersey knit, pullover shirt has graphics on the front
- Styled, faux hair wig has elastic band to secure on head
- Officially licensed
- Made By Us Exclusive
- NOTE: shorts sold separately
Brain Blast Incoming
Time to channel the highest hair, the biggest brain, and the most over-complicated solutions to very simple problems. The Plus Size Jimmy Neutron Costume transforms you into everyone’s favorite boy genius—just taller, wiser, and possibly more enthusiastic about snacks than science. Got a problem? Over-engineer it. Got a party? Show up with a rocket-powered entrance and that signature gravity-defying swoop.
Because nothing says genius like a T-shirt and a four-foot hairstyle.
Design & Details
This officially licensed Nickelodeon costume includes Jimmy’s iconic red tee, made from soft jersey knit polyester with his signature yellow atom symbol printed on the front. It’s a pullover style—no zippers, no buttons, no trip to the lab required. Just throw it on and you’re halfway to brain blast territory.
The real star of the show is the wig, styled to resemble Jimmy's legendary soft-serve swirl of hair. It’s sculpted, cartoon-accurate, and ready to defy the laws of physics (and probably a few school dress codes). An elastic band keeps it secure, so you can keep your head in the game while pretending to invent time travel using a toaster and four AA batteries. Pants and shoes not included—just borrow something from your “failed experiment cleanup” wardrobe.
Big Hair, Bigger Genius
The Plus Size Jimmy Neutron Costume is perfect for nostalgic, cartoon-level confidence, and reenacting 2000s science experiments with questionable safety standards. Grab some friends, build a robot dog out of cardboard, and get ready for some absolutely unnecessary inventing. You’ve got the look. Now all you need is a lab accident and a catchphrase.
Last updated: November 3, 2026
Thank you for shopping with HalloweenCostumes outlet shop. This policy explains how we ship your order, what it costs, and what to expect after you buy.
Order Processing
Except as otherwise stated on our website, orders are processed within 1 business day (excluding holidays).
Orders placed after noon or on weekends and holidays may begin processing the next business day.
You'll receive a confirmation email with tracking as soon as your order ships, if the shipping method supports it.
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Available shipping methods and estimated delivery times are shown at checkout. Delivery times are estimates, not guarantees, and begin once your order ships. They may be affected by carrier delays, weather, or other events outside our control.
Shipping costs
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Lost, damaged, or delayed packages
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Need to change or cancel your order? Contact us as soon as possible. We may be able to accommodate changes before your order ships, but once it's in transit we're unable to modify it. Refunds for cancelled or delayed orders will be processed promptly to the original payment method where possible.
Questions?
Contact our team at oddball.tumble.6v@icloud.com or use the contact details in our contact information policy.
Last updated: November 3, 2026
Returns
Return eligibility depends on the items in your order.
Where returns are accepted, items must be returned in the same condition they were received, unworn or unused, with tags, and in their original packaging or as otherwise indicated in the return instructions. We may reduce your refund if the item has been used, damaged, or handled more than necessary.
Contact us to ask about return options and how to start a return.
How to start a return
Whether return or cancellation requests are accepted depends on the terms above and your rights under applicable law.
Contact us before returning an item.
Unless we state otherwise or applicable law requires otherwise, you are responsible for return shipping costs for change-of-mind returns.
Damages and issues
Please inspect your order when you receive it and contact us immediately if an item is defective or damaged, or if you received the wrong item.
Exceptions and non-returnable items
Some items may not be eligible for return, as stated in the return terms above or on the product listing, website, or in-store at the time of purchase.
Contact us if you have questions about whether a specific item can be returned.
Exchanges
Contact us to ask about exchange options before returning your item.
Refunds
We will notify you after we receive and inspect your return and let you know whether the refund was approved. If approved, you will be refunded to your original payment method, unless otherwise stated. Your bank or payment provider may need additional time to process and post the refund.
If you do not see your refund within a reasonable period of time since your refund was approved, contact us.
This policy does not limit any rights you may have under applicable consumer protection laws, including rights that may apply if goods are defective, not as described, not delivered within the required or agreed timeframe, or otherwise do not comply with applicable law.
Contact
To request a cancellation, start a return, inquire about a return, ask about an exchange or report damaged items, please contact us at oddball.tumble.6v@icloud.com or use the contact details in our contact information policy.
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