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Critical Mass Clothing

Radiate positivity Hoodie

Radiate positivity Hoodie

Regular price $46.00 CAD
Regular price Sale price $46.00 CAD
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Because your attitude should be the only thing emitting good energy.

Designed for nuclear engineers, reactor nerds, health physicists, and anyone who’s ever been told to “calm their isotopes,” this tee reminds the world that you’re here to radiate positivity — not ionizing gamma.

It’s the perfect mix of science pun, wholesome energy, and subtle “please don’t lick the reactor” vibes.



• 100% cotton face
• 65% ring-spun cotton, 35% polyester
• Front pouch pocket
• Self-fabric patch on the back
• Matching flat drawstrings
• 3-panel hood
• Blank product sourced from Pakistan

Disclaimer: This hoodie runs small. For the perfect fit, we recommend ordering one size larger than your usual size.

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

  CHEST WIDTH (inches) LENGTH (inches)
S 20 27
M 21 28
L 23 29
XL 25 30
2XL 26 ½ 31
  CHEST WIDTH (cm) LENGTH (cm)
S 50.8 68.6
M 53.3 71.1
L 58.4 73.7
XL 63.5 76.2
2XL 67.3 78.7
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