Defend The Dark Asteroid Day T-Shirt | Umbravoid
Defend The Dark Asteroid Day T-Shirt | Umbravoid
Asteroid Day, marked each June 30th, reminds us to keep watching the sky — and you can't watch what light pollution has erased. This edition ties dark-sky defense to the work of tracking what's out there: clear, dark skies are how we map the night and the objects moving through it. For observers, advocates, and night-sky nerds who believe protecting darkness is protecting discovery. A premium tee for everyone who defends the dark. Available in 7 sizes (S–4XL) and 10 colorways.
- 100% soft ring spun U.S. cotton fabric & cotton threads
- Proud member of the U.S. Cotton Trust Protocol
- OEKO-TEX certified low-impact dyes
- Salt free clean pigment dye colors
- Plastic-free packaging — polybags removed on all colors except White
All of our shirts are shipped directly from the United States. Orders are processed within 1 to 2 business days and 4-6 days of delivery
- The standard shipping fee is $5.99
- All orders over $99 is free shipping
Organic Cotton
GOTS certified. Grown without pesticides. Soft, breathable, built to last decades.
Colorfastness
Water-based inks cured at 320°F. Wash after wash, the design stays as sharp as the night sky.
Peer Reviewed
Every design is verified against current astronomical data. Coordinates are real. Objects are real.
Made in USA
Produced in the United States. Shorter supply chain, lower footprint, faster delivery.