Caffeine & Gasoline — Heavyweight T-Shirt
Caffeine & Gasoline — Heavyweight T-Shirt
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★★★★★ 4,8 average rating
Fabric & Construction
Fabric & Construction
Cotton Heritage MC1086
6.5 oz/yd² (220 g/m²) · 100% combed ring-spun cotton · 20 singles · Side-seamed · 1x1 rib collar · Sizes S–4XL
Heavier than the standard 4.2 oz tee. Built for shape retention, richer print, and wear that improves over time.
Shipping & Returns
Shipping & Returns
Delivery
We strive to process and ship orders as quickly as possible from our print-on-demand partner. Please note that since each product is made to order, fulfillment and shipping times may vary.
When will I get my order?
Usually, it takes 3–7 days to fulfill an order, after which it’s shipped out. The shipping time
depends on your location, but can be estimated as follows:
● USA: 3–4 business days
● Europe: 6–8 business days
● Australia: 2–14 business days
● Japan: 4–8 business days
● International: 10–20 business days
Where will my order ship from?
We work with an on-demand order fulfillment company with facilities worldwide!
Will I be charged customs for my order?
An additional customs and tax fee can occur on international orders. This fee is not in our control and is assessed by your local customs office. Customs policies vary widely for every country so please check with your local customs office directly to see if they apply duties and taxes to your purchases.
My order should be here by now, but I still don't have it. What should I do?
Before getting in touch with us, please help us out by doing the following:
● Check your shipping confirmation email for any mistakes in the delivery address
● Ask your local post office if they have your package
● Stop by your neighbors in case the courier left the package with them
If the shipping address was correct, and the package wasn't left at the post office or at your neighbor’s, get in touch with us at harri@mummyduck.com with your order number. If you did find a mistake in your delivery address, we can send you a replacement order, but shipping will be at your own cost.
Orders
How are your products made?
We work with a print-on-demand drop shipper. They have locations worldwide, so depending on where you are, your orders are printed and shipped from the facility that can do it most efficiently!
- Multiple Items: If you have ordered multiple items, please be aware that they may be shipped separately from different fulfillment centers. This means that you may receive your items in separate packages and at different times.
How do I track my order?
You’ll receive a tracking link via email when your order ships out. If you have any questions about your tracking or shipment, drop us a line at harri@mummyduck.com.
I received a wrong/damaged product, what should I do?
We’re so sorry if the product you ordered arrived damaged. To help us resolve this for you quickly, please email us at harri@mummyduck.com within a weeks' time with photos of the damaged product, your order number, and any other details you may have about your order. We’ll get back to you with a resolution as soon as possible!
Returns
What’s your return policy?
We don’t offer returns and exchanges, but if there’s something wrong with your order, please let us know by contacting us at [insert your support email here]!
Do you offer refunds?
Refunds are only offered to customers that receive the wrong items or damaged items. If any of these apply, please contact us at [insert your support email here] with photos of wrong/damaged items and we’ll sort that out for you.
Can I exchange an item for a different size/color?
At this time, we don't offer exchanges. If you’re unsure which size would fit better, check out our sizing charts—we have one for every item listed on our store, in the product description section. Though rare, it's possible that an item you ordered was mislabelled. If that’s the case, please let us know at [insert your support email here] within a week after receiving your order. Include your order number and photos of the mislabeled item, and we’ll send you a new one, or issue a refund!
Contact: harri@mummyduck.com
Two fuel sources. One ritual. The Caffeine & Gasoline heavyweight tee is for the morning that starts with espresso and ends with exhaust fumes. 6.5 oz cotton — because the morning ritual deserves better than something thin.
⚖️ 6.5 oz heavyweight cotton — built to last, not to be replaced
🧵 100% combed ring-spun cotton — tighter weave, richer print
📐 Structured regular fit — keeps its shape wash after wash
✍️ Printed on demand — made for you the moment you order
🇺🇸 Printed & shipped from the USA + EU for faster delivery
Washing Instructions
Follow these and it'll outlast most things you own.
1. Wash and dry inside out. Crucial for print longevity.
2. Low temperatures, mild soap — no high heat.
3. Skip the extra spin. More spin, more wear on the fabric.
4. Air dry when possible. Tumble dry low if needed.
Shipping & Returns
Shipping
FREE SHIPPING on orders over $75!
Orders ship within 7 days. Once shipped, allow 2–5 days for delivery.
Returns
Incorrect, damaged, or defective items are eligible for a full refund within 30 days.
Contact us at harri@mummyduck.com
Required disclosure (EU GPSR)
EU law (General Product Safety Regulation, effective December 13, 2024) requires manufacturer and/or EU representative contact: harri@mummyduck.com
Size guide
| WIDTH (inches) | LENGTH (inches) | |
| S | 18 | 29 ½ |
| M | 20 | 30 ½ |
| L | 22 | 31 ½ |
| XL | 24 | 32 ½ |
| 2XL | 26 | 33 ½ |
| 3XL | 28 | 34 ½ |
| 4XL | 30 | 35 ½ |
| WIDTH (cm) | LENGTH (cm) | |
| S | 45.7 | 75 |
| M | 50.8 | 77.5 |
| L | 55.9 | 80 |
| XL | 61 | 82.6 |
| 2XL | 66 | 85 |
| 3XL | 71.1 | 87.6 |
| 4XL | 76.2 | 90.2 |
Why Heavyweight?
Standard t-shirts are 4.2 oz. These are 6.5 oz. You feel the difference the moment you pick one up. The fabric is tighter, the print sharper, the fit more structured. Cotton Heritage MC1086 — the shirt serious riders buy once and keep for years.