Size Chart
Men's Size Chart by Body Measurements (in.)
| Size | Chest | Waist | Arm |
| S | 36-37 | 29-31 | 32 |
| M | 38-40 | 32-34 | 33 |
| L | 41-43 | 35-37 | 34 |
| XL | 44-47 | 38-41 | 35 |
| XXL | 48-51 | 42-45 | 36 |
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Trees help us fight climate change by absorbing carbon dioxide from the atmosphere that causes global warming. That's why we plant one tree for every garment to neutralize our carbon footprint.
Customer Reviews
5.0
Based on 15 Reviews
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JB
03/22/2022
Jordan B. 
United KingdomI recommend this product
Solid, comfy, durable
I thought this was cut a little long when I bought it, but decided to give it a shot. After wearing it on flights to London, Marrakech, and back to Seattle I can attest to how comfortable this thing is. After washing it a few times, the fit is just about perfect.
SL
03/17/2022
Shay L. 
United StatesHenley review
So comfortable I even sleep in it sometimes just because. Huge fan of all Proto things I own, and still haven’t gotten over how affordable it is.
RA
03/11/2022
Robert A. United StatesI recommend this product
So comfy!!
Amazing fit and quality. Fits true to size and love design!
RA
01/28/2022
Robert A. Dallas, Texas, United States
Best quality and fit
Amazing quality and fit! Great price. Went one size down from what I normally wear to get the fit I wanted and couldn’t be happier.
DC
01/17/2022
David C. Bremerton, Washington, United States
Game changer !!
Fits perfectly, I don’t usually fall asleep in shirts, but this one is perfect for that. Comfortable and fits body perfectly. Softness is a game changer