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The ultimate excuse turned tech classic.
“It’s Not a Bug, It’s a Feature” is for developers who’ve mastered the art of turning chaos into documentation.
A timeless design that speaks fluent sarcasm — perfect for engineers, testers, and anyone who’s ever shipped something that kind of works.
This t-shirt is everything you've dreamed of and more. It feels soft and lightweight, with the right amount of stretch. It's comfortable and flattering for all.
• 100% combed and ring-spun cotton (Heather colors contain polyester)
• Fabric weight: 4.2 oz./yd.² (142 g/m²)
• Pre-shrunk fabric
• Side-seamed construction
• Shoulder-to-shoulder taping
• Blank product sourced from Nicaragua, Mexico, Honduras, or the US
• Traceability:
- Weaving—India, South Korea
- Dyeing—El Salvador, California
- Manufacturing—Nicaragua, Mexico, Honduras, or the US
• Contains 0% recycled polyester
• Contains 0% dangerous substances
Age restrictions: For adults
EU Warranty: 2 years
In compliance with the General Product Safety Regulation (GPSR), USE I.T LLC and SINDEN VENTURES LIMITED ensure that all consumer products offered are safe and meet EU standards. For any product safety related inquiries or concerns, please contact our EU representative at gpsr@sindenventures.com. You can also write to us at 9055, 1021 E Lincolnway, Cheyenne, WY, Laramie, EUA, 82001 or Markou Evgenikou 11, Mesa Geitonia, 4002, Limassol, Cyprus.

It’s Not a Bug, It’s a Feature - Unisex t-shirt
$30.00
“It’s Not a Bug, It’s a Feature” is for developers who’ve mastered the art of turning chaos into documentation.
A timeless design that speaks fluent sarcasm — perfect for engineers, testers, and anyone who’s ever shipped something that kind of works.
This t-shirt is everything you've dreamed of and more. It feels soft and lightweight, with the right amount of stretch. It's comfortable and flattering for all.
• 100% combed and ring-spun cotton (Heather colors contain polyester)
• Fabric weight: 4.2 oz./yd.² (142 g/m²)
• Pre-shrunk fabric
• Side-seamed construction
• Shoulder-to-shoulder taping
• Blank product sourced from Nicaragua, Mexico, Honduras, or the US
• Traceability:
- Weaving—India, South Korea
- Dyeing—El Salvador, California
- Manufacturing—Nicaragua, Mexico, Honduras, or the US
• Contains 0% recycled polyester
• Contains 0% dangerous substances
Age restrictions: For adults
EU Warranty: 2 years
In compliance with the General Product Safety Regulation (GPSR), USE I.T LLC and SINDEN VENTURES LIMITED ensure that all consumer products offered are safe and meet EU standards. For any product safety related inquiries or concerns, please contact our EU representative at gpsr@sindenventures.com. You can also write to us at 9055, 1021 E Lincolnway, Cheyenne, WY, Laramie, EUA, 82001 or Markou Evgenikou 11, Mesa Geitonia, 4002, Limassol, Cyprus.
Size guide
LENGTH (cm) | WIDTH (cm) | CHEST (cm) | |
XS | 68.6 | 42 | 78.7-86.4 |
S | 71.1 | 45.7 | 86.4-94 |
M | 73.7 | 50.8 | 96.5-104.1 |
L | 76.2 | 55.9 | 106.7-114.3 |
XL | 78.7 | 61 | 116.8-124.5 |
2XL | 81.3 | 66 | 127-134.6 |
3XL | 83.8 | 71.1 | 137.2-144.8 |
4XL | 86.4 | 76.2 | 147.3-155 |
5XL | 89 | 78.7 | 157.5-165 |