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OTUS - Arnett Edition (Quality T) Size Guide

Size label	Length	Width	Sleeve length
S	28	19	9
M	29	21	9
L	30	22	9
XL	31	24	9
2XL	32	26	10
3XL	33	28	10

Measurements are provided by our suppliers. Product measurements may vary by up to 2" (5 cm).

US customers should order a size up as the EU sizes for this supplier correspond to a smaller size in the US market.

Pro tip! Measure one of your products at home and compare it with the measurements you see in this guide.

A Width

Place the end of the tape at the seam under the sleeve and pull the tape measure across the shirt to the seam under the opposite sleeve.

B Length

Place the end of the tape beside the collar at the top of the tee (Highest Point Shoulder). Pull the tape measure to the bottom of the shirt.

C Sleeve length

Place one end of the tape at the top of the set-in sleeve, then pull the tape down until you reach the hem of the sleeve.

About Us

OTUS started out as a small, independent research effort funded by the life savings of its members. 2026 is now our third year, and we want to partner with you to continue keeping our mission alive! Consider purchasing a shirt or donating directly.

SUPPORT THE SCIENCE!

OTUS - Arnett Edition (Quality T)

OTUS Desk Mat w/ Drone Code

OTUS - Arnett Edition (Standard T)