Skip to content
Complimentary Global Shipping on All Orders
Order 3 Items, Receive a 4th Complimentary
View the Complete Numbered Archive

You’re the Proof of Purchase | No. 070Unisex T-Shirt

Price$35.00
Select Size

Mix & Match: Buy any 3 items, get 1 free.
Printed and ships free from US warehouses
Arrives in 3-6 days

Concept:
Inspired by receipts, barcodes, and moments that validate who we are, this design nods to consumer culture, existentialism, and the need for recognition. “You’re the Proof of Purchase” is both tongue-in-cheek and deeply resonant — a wearable stamp of identity for anyone who’s ever searched for meaning in the everyday.

Product Description:
A playful yet poignant take on self-worth and validation, this shirt mimics a classic receipt aesthetic with the phrase “You’re the Proof of Purchase” stamped proudly. It’s perfect for those who find humor in introspection, question systems, or just really like receipts. Printed on a neutral base to evoke paper tones and minimalism.

Inner Collar Quote:
“Authenticity Verified | 本物保証”

The definitive baseline of the ichinichi catalog. Build 3001 is engineered as our primary structural canvas. Designed as an uncompromising, genderless silhouette, it delivers the exact balance of physical endurance and deliberate drape. It is not designed to be invisible; it is crafted to serve as the heavy, continuous foundation of the daily rotation.

The architecture of this garment demands absolute shape retention. Engineered with rigorous side-seamed execution and pre-calibrated for dimensional stability, it is built to maintain its stark geometry through continuous environmental cycles. The exterior plane is highly optimized to receive our visual discipline, ensuring every typographical and structural element binds permanently to the form.

Material Architecture: Solid artifacts are forged entirely from 100% Airlume combed, ring-spun cotton. The Ash variant introduces a highly deliberate 99/1 cotton-poly integration. Heather variants shift to a 52/48 ratio to achieve a specific visual frequency, while Athletic and Black Heathers utilize a 90/10 structural blend. The unique Heather Prism tones are calibrated at a 99/1 ratio. Every variant delivers a dense, premium finish.

Assembled across our global fabrication network under strict ethical and environmental protocols, ensuring every artifact meets the ichinichi standard before it is commissioned for your wardrobe.

  • XS — Length: 27 in, Width: 16½ in, Chest: 31–34 in
  • S — Length: 28 in, Width: 18 in, Chest: 34–37 in
  • M — Length: 29 in, Width: 20 in, Chest: 38–41 in
  • L — Length: 30 in, Width: 22 in, Chest: 42–45 in
  • XL — Length: 31 in, Width: 24 in, Chest: 46–49 in
  • 2XL — Length: 32 in, Width: 26 in, Chest: 50–53 in
  • 3XL — Length: 33 in, Width: 28 in, Chest: 54–57 in
  • 4XL — Length: 34 in, Width: 30 in, Chest: 58–61 in

We reject the bloated cycle of mass retail. Every ichinichi artifact is engineered with absolute intent, meaning your garment does not exist until the exact moment it is commissioned.

By operating on a strict, on-demand fabrication model, we eliminate the physical waste and environmental friction of the fashion industry. This process requires a deliberate 3–4 day lead time before shipping. It is a slower, uncompromising system designed to ensure structural perfection and zero excess inventory. Your piece is not pulled from a static stockpile; it is forged strictly for your daily rotation.

The ichinichi discipline is a universal architecture. We commission and deliver artifacts globally, providing complimentary transit on all orders, regardless of destination.

To maintain our strict zero-waste philosophy and eliminate unnecessary carbon friction, we operate a decentralized fabrication network with localized hubs across the US, EU, UK, and Japan. Your garment is engineered at the facility closest to your coordinates. Following the deliberate 2–5 day fabrication period, please allow 3–6 days for localized transit. Global deployment times vary by region, but every piece is routed with absolute efficiency.

0 / 0

From the Studio Journal

Visit the blog →

The Beauty of the Unfinished: Leaving Room for Tomorrow

Every design is a conversation, and sometimes the most powerful statement is knowing when to stop. We explore the intentionality of the incomplete.
Read Article →
Raw-edged black fabric and thread on a worn wooden workbench in a Brooklyn loft at dusk.

The Beauty of the Unfinished: Leaving Room for Tomorrow

You’re the Proof of Purchase | No. 070, Unisex T-Shirt
You’re the Proof of Purchase | No. 070, Unisex T-Shirt