





Promo available
“Why Buy It When I Can Overbuild It Myself” Tee
Free shipping for orders over $100.00 for everyone (United States only). Promotion auto-applied on checkout.
If it’s worth doing, it’s worth massively overengineering. This soft, lightweight tee from Wacky Engineering is for those who see a simple problem and solve it with 47 parts, two motors, and a questionable amount of glue. Relaxed fit and unisex sizing make it perfect for comfy couch scheming or all-day shop mayhem.
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Solid colors: 100% ring-spun cotton
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Sport Grey: 90% ring-spun cotton / 10% polyester
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Dark Heather: 65% polyester / 35% cotton
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Lightweight 4.2 oz fabric for max comfort
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Relaxed fit, unisex sizing
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Model is 6’0” wearing size XL
More details
- Solid colors are 100% ring-spun cotton
- Sport Grey is 90% ring-spun cotton, 10% polyester
- Dark Heather is 65% polyester, 35% cotton
- Lightweight fabric: 4.5 oz/yd² (153 g/m²)
- Regular fit
Size & Fit
Quality Guarantee & Returns
- Quality is guaranteed. If there is a print error or visible quality issue, we'll replace or refund it.
- Because the products are made to order, we do not accept general returns or sizing-related returns.
“Why Buy It When I Can Overbuild It Myself” Tee Size Guide

Size label | Length | Width | Sleeve length |
---|---|---|---|
S
|
28
|
18
|
16.75
|
M
|
29
|
20
|
17.88
|
L
|
30
|
22
|
19.13
|
XL
|
31
|
24
|
20.38
|
2XL
|
32
|
26
|
21.63
|
3XL
|
33
|
28
|
22.75
|