• May include: A black short-sleeve t-shirt featuring a white rectangular graphic on the left chest. The graphic contains the text DMIC, DARK MATTER INVENTORY CONTROL, and FIELD CREW. The shirt has a crew neckline and a standard straight hem.
  • May include: A black short-sleeve t-shirt featuring a white graphic on the back. The design includes the text DARK MATTER INVENTORY CONTROL, a wireframe crate illustration surrounded by a galaxy, a scientific line graph, and the text PHYSICAL COUNT PENDING.
  • Dark Matter Inventory Control Shirt | Unisex Physics Crew Neck Tee
  • May include: A black short-sleeved t-shirt viewed from the side. The garment features a white graphic print on the upper back area, displaying technical line drawings and text that reads "THE REACTOR" and "CORE" in a clean, sans-serif font style.
  • May include: A black short-sleeved t-shirt featuring white text on the chest that reads DMIC, DEEP WATER, FIELD CREW. On the sleeve, white text reads OBSERVE, INFER, REPEAT. The shirt is shown from a side profile view, displaying the sleeve and torso.
  • May include: A black short-sleeve t-shirt featuring a white rectangular graphic on the left chest. The graphic contains the text DMIC, DARK MATTER INVENTORY CONTROL, and FIELD CREW. The shirt has a crew neckline and a standard straight hem.
  • May include: A black short-sleeve t-shirt featuring a white graphic on the back. The design includes the text DARK MATTER INVENTORY CONTROL, a wireframe crate illustration surrounded by a galaxy, a scientific line graph, and the text PHYSICAL COUNT PENDING.
  • Dark Matter Inventory Control Shirt | Unisex Physics Crew Neck Tee
  • May include: A black short-sleeved t-shirt viewed from the side. The garment features a white graphic print on the upper back area, displaying technical line drawings and text that reads "THE REACTOR" and "CORE" in a clean, sans-serif font style.
  • May include: A black short-sleeved t-shirt featuring white text on the chest that reads DMIC, DEEP WATER, FIELD CREW. On the sleeve, white text reads OBSERVE, INFER, REPEAT. The shirt is shown from a side profile view, displaying the sleeve and torso.
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Dark Matter Inventory Control Shirt | Unisex Physics Crew Neck Tee

Item highlights

  • Materials: Cotton
  • Made to order

Seller's description

DARK MATTER INVENTORY CONTROL
Field crew. Physical count pending.

A restrained DMIC chest badge, a full-back inventory-crate composition, and OBSERVE / INFER / REPEAT on the left sleeve. PRESENT BY INFERENCE rewards a closer look. Proof & Particle branding and PROOFANDPARTICLE.COM are integrated into the back artwork.

BEHIND THE DESIGN
An inventory begins with a simple question.

What is here?

Across the universe, the answer appears to be larger than what we can see.

Stars and gas in the outer regions of galaxies orbit faster than the gravity of visible matter alone would predict. The bending of light around galaxies and galaxy clusters tells a related story.

More mass is present than the luminous inventory can explain.

We call that unseen component dark matter.

Its gravitational effects can be measured.

What it is remains unresolved.

That combination of evidence and uncertainty became the starting point for Dark Matter Inventory Control.

We imagined an inventory department responsible for something that resists an ordinary stocktake. A crate. An inferred halo. A record of motion standing in for direct inspection.

PRESENT BY INFERENCE.

The illustrative rotation curve carries the central discrepancy. One line shows the expected orbital speeds from visible matter alone. The other remains higher as the radius increases.

The difference gives the department something to account for.

PHYSICAL COUNT PENDING.

We chose this idea because science often begins with a mismatch. An observation refuses to fit. A familiar explanation reaches its limit. Something unseen starts to become necessary to the account.

There is discipline in following that evidence.

There is equal discipline in keeping the unanswered question open.

OBSERVE. INFER. REPEAT.

The inventory is unfinished.

The universe keeps moving.

Beauty. Discovery. Depth.

Scientific reference: NASA — Dark Matter.
https://science.nasa.gov/dark-matter/

DESIGN NOTES
The fictional inventory department is a metaphor for matter inferred through its gravitational effects, not a claim that dark matter has been collected in a crate. The rotation curve is illustrative, not measured data; it contrasts observed orbital speeds with a visible-matter-only model. The halo outline is a schematic, not a photograph of dark matter.

GARMENT & PLACEMENT
Unisex Bella + Canvas 3001, Black, crew neck only, sizes S–2XL. Small wearer-left chest print, full back print, and left-sleeve print. DTG printing. Cream and purple inks are not metallic or glow-in-the-dark. Mockups illustrate placement; print appearance can vary with fabric and lighting.

FABRIC WEIGHT & SHRINKAGE
100% Airlume combed and ring-spun cotton. Soft, lightweight 4.2 oz./yd.² (142 g/m²) fabric—not a heavyweight tee. Pre-shrunk does not mean shrink-proof. Side-seamed construction and shoulder-to-shoulder taping. Blank sourced from Nicaragua, Mexico, Honduras, or the US.

CARE
Machine wash cold, inside out, on a gentle cycle with mild detergent and similar colors. Tumble dry low or hang dry. Do not use fabric softener, dry clean, or iron directly over the print. Warm or hot washing and high dryer heat may cause shrinkage and affect the print. Full care guide: https://proofandparticle.com/care

Made to order. Please check the size guide before ordering.

TRADEMARK NOTICE
PROOF & PARTICLE™ is a trademark of R Mavrovich & Associates Inc.

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Shop review

Why this review appears

All reviews are from verified buyers. This review is shown automatically based on factors like recency, whether it includes comments, your chosen language, and whether the rating reflects the typical experience with the shop.

“I’m genuinely surprised how high the quality of this T-Shirt is! I love the galaxy background radiation diagram, and the message speaks for itself. Fits well! Definitely recommend ✅”

Adam

Sep 9, 2026

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Price:$42.00

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Shipping & return policies
  • Get it by
    Oct 21-27
  • Returns & exchanges
    Accepted within 30 days
  • Cost to ship
    $4.95 to United States, 43215.

Seller's description

Specifications

May include: A black short-sleeve t-shirt featuring a white rectangular graphic on the left chest. The graphic contains the text DMIC, DARK MATTER INVENTORY CONTROL, and FIELD CREW. The shirt has a crew neckline and a standard straight hem.

DARK MATTER INVENTORY CONTROL
Field crew. Physical count pending.

A restrained DMIC chest badge, a full-back inventory-crate composition, and OBSERVE / INFER / REPEAT on the left sleeve. PRESENT BY INFERENCE rewards a closer look. Proof & Particle branding and PROOFANDPARTICLE.COM are integrated into the back artwork.

BEHIND THE DESIGN
An inventory begins with a simple question.

What is here?

Across the universe, the answer appears to be larger than what we can see.

Stars and gas in the outer regions of galaxies orbit faster than the gravity of visible matter alone would predict. The bending of light around galaxies and galaxy clusters tells a related story.

More mass is present than the luminous inventory can explain.

We call that unseen component dark matter.

Its gravitational effects can be measured.

What it is remains unresolved.

That combination of evidence and uncertainty became the starting point for Dark Matter Inventory Control.

We imagined an inventory department responsible for something that resists an ordinary stocktake. A crate. An inferred halo. A record of motion standing in for direct inspection.

PRESENT BY INFERENCE.

The illustrative rotation curve carries the central discrepancy. One line shows the expected orbital speeds from visible matter alone. The other remains higher as the radius increases.

The difference gives the department something to account for.

PHYSICAL COUNT PENDING.

We chose this idea because science often begins with a mismatch. An observation refuses to fit. A familiar explanation reaches its limit. Something unseen starts to become necessary to the account.

There is discipline in following that evidence.

There is equal discipline in keeping the unanswered question open.

OBSERVE. INFER. REPEAT.

The inventory is unfinished.

The universe keeps moving.

Beauty. Discovery. Depth.

Scientific reference: NASA — Dark Matter.
https://science.nasa.gov/dark-matter/

DESIGN NOTES
The fictional inventory department is a metaphor for matter inferred through its gravitational effects, not a claim that dark matter has been collected in a crate. The rotation curve is illustrative, not measured data; it contrasts observed orbital speeds with a visible-matter-only model. The halo outline is a schematic, not a photograph of dark matter.

GARMENT & PLACEMENT
Unisex Bella + Canvas 3001, Black, crew neck only, sizes S–2XL. Small wearer-left chest print, full back print, and left-sleeve print. DTG printing. Cream and purple inks are not metallic or glow-in-the-dark. Mockups illustrate placement; print appearance can vary with fabric and lighting.

FABRIC WEIGHT & SHRINKAGE
100% Airlume combed and ring-spun cotton. Soft, lightweight 4.2 oz./yd.² (142 g/m²) fabric—not a heavyweight tee. Pre-shrunk does not mean shrink-proof. Side-seamed construction and shoulder-to-shoulder taping. Blank sourced from Nicaragua, Mexico, Honduras, or the US.

CARE
Machine wash cold, inside out, on a gentle cycle with mild detergent and similar colors. Tumble dry low or hang dry. Do not use fabric softener, dry clean, or iron directly over the print. Warm or hot washing and high dryer heat may cause shrinkage and affect the print. Full care guide: https://proofandparticle.com/care

Made to order. Please check the size guide before ordering.

TRADEMARK NOTICE
PROOF & PARTICLE™ is a trademark of R Mavrovich & Associates Inc.

ProofAndParticleCo made this item with help from
Printful, Charlotte, NC

Delivery details and policies

  • Get it by
    Oct 21-27
  • Returns and exchanges
    Accepted within 30 days
  • Ships from
    Charlotte, NC
  • Cost to ship
    $4.95 to United States, 43215

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Meet your seller

Rick Mavrovich
ProofAndParticleCo ·

United States

We calculate this number using a recency-weighted average of all ratings, with a rating's value decreasing by half each year to best reflect the current experience. 5.0
·
3 sales
·
1 month on Etsy
View shop registration details

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Listed on Sep 7, 2026
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