Why Choose the Grishko Apparel Collection
Premium printed clothing made for every body — built with durable fabrics, inclusive XS–5XL sizing, and care-free style.
Kevin Jonas I’m On My Wurst Behavior Shirt
May 25
May 27 - May 29
Jun 03 - Jun 08
I’m On My Wurst Behavior Shirt | Capture the Playful Pop-Star Vibe
Unleash your inner prankster and join the “Jonatics” craze with the “Kevin Jonas I’m On My Wurst Behavior Shirt”.
This isn’t just a t-shirt; it’s a conversation starter and a slice of pop-culture humor that fans are eating up. Recently spotted as a standout piece in the Jonas Brothers’ style rotation, this shirt captures the lighthearted, comedic energy that Kevin Jonas is loved for. Whether you are gearing up for the next concert, heading to an Oktoberfest celebration, or simply love a top-tier “dad joke,” this tee delivers maximum impact with its bold yellow canvas and hilarious graphic.
The design features a riotously funny cartoon bratwurst character—cool and collected in sunglasses—throwing up peace signs under the vibrant, comic-book-style slogan: “I’M ON MY WURST BEHAVIOR!” It’s the perfect blend of self-deprecating humor and confident style. Crafted for fans who don’t take themselves too seriously, this shirt lets you channel the same approachable, fun-loving charisma as the eldest Jonas brother. It’s not just merch; it’s a mood.
Kindly review your personalized details attentively, as numerous orders have arrived incomplete. Note that we exclusively dispatch to valid street addresses.
Grishko collaborates with reputable shipping partners, including UPS, USPS, DHL, and Yun Express, Yanwen.
SHIPPING POLICY
WHAT ARE THE SHIPPING COSTS?
Within the U.S., shipping is priced at 5.99 USD.
International shipping rates start from 13 USD.
WHERE DO WE SHIP?
We offer global delivery services.
Shipping time
US Regions:
| Item | Handling time (Mon-Fri) | Shipping time ( Mon-Fri ) |
| Apparel | 1-3 days | 3 -7 days |
| Mug | 2-3 days | 3-7 days |
| Poster, Canvas | 1-3 days | 3 -7 days |
| Hats | 2-3 days | 6-8 days |
| Bedding | 3-5 days | 7-10 days |
| 3D Clothing, Hawaiian shirt… | 3-5 days | 8-12 days |
Other Countries:
Handling time (Mon-Fri): 3-5 days
Shipping time ( Mon-Fri ): 15-25 days.
Note: Please be advised that shipping times may be influenced by public holidays, destination countries, and courier services.
Delivered
Total delivery time= Handling time + Shipping time
Although we provide estimated shipping times, it’s prudent not to plan your delivery too close to your deadline as unforeseen delays, beyond our control, may occur. Please allow extra time to accommodate such circumstances. While we strive to ensure timely delivery, we cannot be held liable for delays caused by external factors like shipping carriers, weather, holidays, customs clearance, or inaccurate delivery information.
If you encounter any issues with your order or need to make adjustments, feel free to reach out to us at [email protected]. Our team is dedicated to assisting you and resolving any concerns you may have.
Regarding multiple shipping addresses, we regret to inform you that we do not currently support this feature. If you require items to be delivered to different addresses, we kindly ask you to place separate orders for each destination.
Shipping is available to P.O. Box addresses; however, we are currently unable to deliver to military APO/FPO locations.
Regarding VAT taxes, please note that international shipments from the US are sent DDU (Delivered Duty Unpaid), and we do not collect VAT at the time of purchase. The recipient is responsible for any applicable taxes, duties, or customs fees upon receiving the package. Local customs or VAT charges may apply, and we recommend contacting your customs office for further details on your country’s policies.
Quick FAQ
What are the shipping costs?
USA Shipping: Flat rate $5.99 for all orders.
International Shipping: Starting from $13.00 (calculated at checkout).
Can I order this item now?
Yes. Grishko.com is an independent store with on-demand production. Simply select your style, add to cart, and checkout.
How do I pick the right size?
Check the Size Chart on the product page for exact measurements.
- Units: Our charts provide measurements in both Inches and Centimeters (CM).
- Pro Tip: Lay a shirt you already own flat, measure the width and length, then match it to our chart. This is the best way to ensure a perfect fit!
Can I cancel or change my order?
Yes, but you must act fast. We allow a 6-hour window after ordering for any changes or cancellations.
Returns & Refunds
- 30-Day Policy: Returns are accepted within 30 days of delivery if the item is damaged, the wrong size, or not as described.
- Process: Email support with photos before returning and always keep your tracking number.
Quick Care Guide
- Apparel: Wash cold, avoid harsh bleach, dry gently or air dry.
- Accessories: Wipe clean and keep dry.
- Home Goods: Follow the printed label instructions.
Pro-Grade Sewing & DTG Printing
Premium polyester, spandex, or cotton fabrics (product-specific), reinforced with pro-grade stitching and advanced DTG printing technology for vibrant, long-lasting prints that won’t fade or crack.
Inclusive Fit, XS to 5XL
True-to-size plus size apparel and unisex clothing tailored for every body. From XS to 5XL, every cut is designed to move with you and flatter every silhouette.
Engineered for Endurance
High-density fabrics built to hold their shape and keep print colors vibrant, so every Grishko piece looks as fresh as day one — wash after wash.
Easy-Care, Built to Last
Low-maintenance everyday clothing. Simply machine wash cold and tumble dry low — no shrinking, no fading, no fuss.
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Kevin Jonas I'm On My Wurst Behavior Shirt
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| 5 star | 89% | |
| 4 star | 11% | |
| 3 star | 0% | |
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| 1 star | 0% |
1-5 of 18 reviews
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