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Sale Price CA$37.53.  
Original Price CA$41.70 per shirt
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It Worked Yesterday Funny Programmer Cat Shirt

4.7 out of 5 stars rating
32889 Total Reviews |
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  1. Size

  2. Style

  3. Colour & Print Process: White

    Classic Printing: No Underbase
    Vivid Printing: White Underbase

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About T-Shirts

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Style: Men's Basic T-Shirt

Comfortable, casual and loose fitting, our heavyweight t-shirt will easily become a closet staple. Made from 100% cotton, it's unisex and wears well on anyone and everyone. We’ve double-needle stitched the bottom and sleeve hems for extra durability.

Size & Fit

  • Model is 185 cm and is wearing a medium
  • Standard fit
  • Garment is unisex sizing
  • Fits true to size

Fabric & Care

  • 100% cotton (Heathers are a cotton/poly blend)
  • Double-needle hemmed sleeves and bottom
  • Machine wash cold, tumble dry low
  • Imported
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About This Design

It Worked Yesterday Funny Programmer Cat Shirt

A wide-eyed white cat panicking at a laptop showing a big red error X, under bold 'IT WORKED YESTERDAY' caps with a red error-panic label. Coding humour for programmers, developers, software engineers and CS students. Original design by CalmCodeStudio, created with AI-assisted tools.
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Customer Reviews

4.7 out of 5 stars rating32.9K Total Reviews
25765 total 5-star reviews4990 total 4-star reviews1126 total 3-star reviews509 total 2-star reviews499 total 1-star reviews
32,889 Reviews
Reviews for similar products
5.0 out of 5 stars rating
5 out of 5 stars rating
By Anamaria G.March 15, 2023 • Verified Purchase
Basic T-Shirt, White, Large
Zazzle Reviewer Program
The t-shirt is SO cute and perfect! The shirt is nice and soft and the printing does not have any distortion. The shirt arrived within 2 weeks. 5 ⭐️. The colors are fine and similar to the virtual image.
5.0 out of 5 stars rating
5 out of 5 stars rating
By Zachary L.September 7, 2026 • Verified Purchase
Basic T-Shirt, White, Large
I especially love this shirt (I've always had a infinity for Chimpanzees!) and I couldn`t have asked for better! .
5.0 out of 5 stars rating
5 out of 5 stars rating
By Eric N.November 23, 2018 • Verified Purchase
Basic T-Shirt, White, Large
Creator Review
The shirt is comfortable and fits well. Holds its size after washing. The "natural" fabric looks better in reality than it does on screen. Vibrant colours came out great! Image positioning was perfect. Couldn't be happier.

Tags

programmercat programmercodingdevelopersoftware engineerfunny programmercoderit worked yesterdaydebugginggenerativecontent

Other Info

It Worked Yesterday Funny Programmer Cat Shirt
Product ID: 256652177606786435
Designed on 2026-10-18, 1:20 a.m.
Rating: G