It Worked Before the Demo Developer Shirt
It Worked Before the Demo Developer Shirt
Soft 100% Cotton
Size Guide
Our cotton T-shirts have a unisex fit. For a roomier look, consider sizing up.
Measure a shirt you already like
Lay it flat. Measure across the chest from armpit to armpit, then from the highest point of the shoulder beside the collar to the bottom hem. Compare those garment measurements below.
| Size | Flat chest width | Body length |
|---|---|---|
| S | 18 | 28 |
| M | 20 | 29 |
| L | 22 | 30 |
| XL | 24 | 31 |
| 2XL | 26 | 32 |
| 3XL | 28 | 33 |
These are manufacturer reference measurements, not body measurements. Normal manufacturing variation can occur. Multiply inches by 2.54 for centimeters.
Care for your print
Turn inside out before washing. Wash cold on a gentle cycle with similar colors. Tumble dry low or hang dry. Do not iron directly on the print or dry clean.
Each shirt is made to order, so we cannot accept returns simply for choosing the wrong size. Ask Us if You Need Help before Ordering.
Couldn't load pickup availability
The build was fine until someone asked to see it. An It Worked Before the Demo shirt for developers, engineers and anyone familiar with demo-day timing.
- Soft, lightweight 100% cotton.
- Unisex fit. Compare Shirt Measurements before choosing your size.
- Bold front lettering with a plain back.
Care
Wash inside out in cold water. Tumble dry low or hang dry. Do not iron the print.

Size guide
Our cotton T-shirts have a unisex fit. For a roomier look, consider sizing up.
Measure a shirt you already like
Lay it flat. Measure across the chest from armpit to armpit, then from the highest point of the shoulder beside the collar to the bottom hem. Compare those garment measurements below.
| Size | Flat chest width | Body length |
|---|---|---|
| S | 18 | 28 |
| M | 20 | 29 |
| L | 22 | 30 |
| XL | 24 | 31 |
| 2XL | 26 | 32 |
| 3XL | 28 | 33 |
These are manufacturer reference measurements, not body measurements. Normal manufacturing variation can occur. Multiply inches by 2.54 for centimeters.
Care for your print
Turn inside out before washing. Wash cold on a gentle cycle with similar colors. Tumble dry low or hang dry. Do not iron directly on the print or dry clean.
Each shirt is made to order, so we cannot accept returns simply for choosing the wrong size. Ask Us if You Need Help before Ordering.
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