“I Do My Own Safety Testing” Crewneck product image (1)
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“I Do My Own Safety Testing” Crewneck product image (1)
“I Do My Own Safety Testing” Crewneck product image (2)
“I Do My Own Safety Testing” Crewneck product image (3)
“I Do My Own Safety Testing” Crewneck product image (4)
Promo available

“I Do My Own Safety Testing” Crewneck

$25.00
Free shipping for orders over $100.00 for everyone (United States only). Promotion auto-applied on checkout.

Who needs a lab when you are the experiment? The “I Do My Own Safety Testing” sweatshirt from Wacky Engineering is perfect for fearless inventors and mildly reckless tinkerers. Made with air-jet spun yarn for a soft, smooth feel, this midweight crewneck keeps you cozy while you push boundaries (and buttons).

  • 50% cotton / 50% polyester blend

  • Midweight 8.0 oz fabric – warm, but not bulky

  • Air-jet spun yarn for reduced pilling and ultimate comfort

  • Unisex sizing with a regular fit

  • Model is 6’2” wearing size L

Select Size

Please select Size

More details

  • 50% cotton, 50% polyester
  • Midweight fabric: 8.0 oz/yd² (271 g/m²)
  • Regular fit

Size & Fit

View size chart

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.

“I Do My Own Safety Testing” Crewneck Size Guide

https://files.cdn.printful.com/upload/product-measure/08/08929f2417739fea42de6d36b5da37fe_l?v=1652962719
Size label Length Width Sleeve length
S
27
20
33 1/2
M
28
22
34 1/2
L
29
24
35 1/2
XL
30
26
36 1/2
2XL
31
28
37 1/2
3XL
32
30
38 1/2
4XL
33
32
39 1/2
5XL
34
34
40 1/2

Supplier-provided measurements may differ by up to 2 inches (5 cm).

Helpful hint: Compare these measurements with a similar item you own by measuring it at home.

A Length

Position the start of the tape measure at the top of the garment next to the collar (at the high point shoulder) and extend it down to the item's bottom.

B Width

Position the tape measure at one side of the chest and extend it horizontally to the opposite side.

C Sleeve length

Start measuring from the back center of the collar, move along the sleeve's top seam up to the shoulder, secure the tape here, and continue along the sleeve until you reach its end.