Collimation Therapy Cheshire Cap T-Shirt | Umbravoid
Collimation Therapy Cheshire Cap T-Shirt | Umbravoid
Every reflector owner knows the ritual: a Cheshire collimation cap in the focuser, one eye squinting down the tube, nudging the mirror screws until the optics line up perfectly. Collimation is half maintenance, half meditation — and the Cheshire is the trusty tool that makes the misalignment visible. This edition is for Newtonian and Dobsonian owners who find a strange peace in squaring up their optics before a clear night. A premium tee for the telescope tinkerer who collimates as therapy. 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.