Just a little bit of radiation sweatshirt

Yes, bananas are radioactive — and now your shirt can be too (minus the Geiger counter clicks).

This clever design highlights one of science’s funniest facts: the potassium-40 in bananas gives off natural radiation. Don’t worry, you’d have to eat millions at once to get a dose worth talking about — but it makes for the perfect nerdy conversation starter.

With bold, clean vector art of a smiling banana sporting a radiation symbol, this tee is ideal for science enthusiasts, nuclear energy supporters, and anyone who likes their humor peeled with a side of physics.

• 50% cotton, 50% polyester
• Pre-shrunk
• Classic fit
• 1x1 athletic rib knit collar with spandex
• Air-jet spun yarn with a soft feel
• Double-needle stitched collar, shoulders, armholes, cuffs, and hem

Disclaimers:
• Due to the fabric properties, the White color variant may appear off-white rather than bright white.
• Subtle orange hue shifts with lighting in the Orange color variant.

This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!

Size guide