Caffeine Engine Motorcycle T-Shirt
Caffeine Engine Motorcycle T-Shirt
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- 30-day returns where eligible
Description
Description
👕 Premium feel, built for riders & rebels
🧵 100% ringspun cotton — soft but tough
📏 True-to-size & pre-shrunk (no nasty surprises)
🌿 Ethically grown US cotton, road-friendly & earth-friendly
🇺🇸 Printed & shipped from the USA + EU for faster rides to your door
Washing Instructions
Washing Instructions
Follow these, and your tees will stay vibrant for a lifetime.
1. Wash and dry your tees inside out.
2. Choose low temperatures and mild soaps.
3. Resist the spin temptation.
4. Air dry when possible.
Proper fuel for the rider, questionable fuel for the machine.
Caffeine Engine is for the morning start-up, the garage light left on too late, and the mechanical obsession that makes a perfectly sensible day take the long way home. Coffee first. Then see what the engine has to say.
Why you'll wear it
- Coffee and motorcycle culture in one Mummyduck Customs design
- For riders who treat caffeine as part of the maintenance schedule
- Dry, mechanical attitude without the generic biker merchandise routine
The details
- Color: Black
- Sizes: XS–5XL
- Pre-shrunk cotton-polyester blend
- Classic fit

T-shirt for ride
Built for the ride, not the showroom. 100% ringspun cotton, pre-shrunk and true-to-size. Made on demand, no minimums. Printed and shipped from the USA and EU.
- Soft and lightweight feel with the right amount of stretch
- Comfortable and flattering for all
- 100% combed and ring-spun cotton
- Heather colors contain polyester
- Fabric weight: 4.2 oz./yd.², 142 g/m²
- Pre-shrunk fabric
- Side-seamed construction
- Shoulder-to-shoulder taping
- Blank product sourced from Nicaragua, Mexico, Honduras, or the US
- Available colors: Black, Brown and Natural
- Available sizes: XS through 5XL
- Made on demand after purchase
- Made-to-order production may take longer to deliver and helps reduce overproduction
- Fabric may be slightly sheer, especially in lighter colors or certain lighting conditions
No printing method or care instructions are present in the current listing, so I won’t invent either.