Applied Physics
Institutional graphics for impossible departments, field offices, and orbital operations.
Garments for rigorous imaginations
Science, with
better typography.
Original mathematics, physics, and astronomy shirts for people who know the story behind the symbols.
Lagrange Point Maintenance CrewPosition is relative
The Proof & Particle standard
Smart enough that a physicist feels seen. Good-looking enough that nobody needs the explanation.
Original artworkHistorically groundedBuilt for insiders
The collection system
Three ways into the idea.
Mathematical Lives
Human stories hidden inside theorems, proofs, and beautiful unfinished business.
Quiet Signals
Equations and insider jokes that reward a second look without demanding one.
Opening collection / 2026
Nineteen shirts.
Twelve ideas.
Seven institutional designs are offered in both Original and Crew Editions. Each shirt works first as a graphic and then, for the right person, as recognition.
Why Proof & Particle
The joke is never the whole design.
We start with the history, equation, or physical idea. Then we make something you would wear even if nobody at the coffee shop understands it. The recognition belongs to the people who do.
Read our story →Ordering
Ready when
you are.
Explore the collection here, then purchase securely through our Etsy shop.
Shop the collectionField notes
Good to know.
How do I order?
Choose a design here, then complete your purchase through the Proof & Particle Etsy shop. Etsy provides checkout, order confirmation, and delivery updates.
What are the two editions?
Original Editions place the established large graphic on the front. Crew Editions are built like issued workwear, with a small front-left-chest identifier and the full design on the back.
Where can I find sizing and shipping details?
Each Etsy listing includes garment specifications, a size guide, current production estimates, and delivery information before checkout.
Why is checkout on Etsy?
Etsy gives customers a familiar marketplace, secure checkout, and review system. Proofandparticle.com remains the permanent home of the brand.
Why explain the jokes?
Every listing includes a short “Behind the Design” note. Understanding should deepen the shirt, never be required to rescue it.
proofandparticle.com
Made for people who know the story.
Original designs · Mathematics, physics & astronomy