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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Better Basics
Elevate your basics and help build a better world with us. That's why we use sustainable materials to do the least harm to the environment, and support an ethical supply chain. Our French Terry sweats are high quality and durable so your favorite basics last a lifetime and stay out of the landfills.
One tree planted for every garment.
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 4 Reviews
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AJ
03/01/2022
Anjali J. Denver, Colorado, United States
Awesome shirt! Mainstay
Bought a few Proto101 shirts--this one for my son, a couple for my husband, and a couple of other items for my daughter and me. They're all awesome: well fitting, soft, and classy looking for casual wear. About to buy more because I love them so much! They keep their shape which is another plus!
AC
09/15/2021
Ashleigh C. Seattle, Washington, United States
Relax to the max
This has become my go-to Sunday shirt - super comfortable both fit and fabric.
M
11/08/2020
Mark Just found my favorite t-shirt
This t-shirt is my new favorite! I find myself wearing this shirt every few days due to the awesome fabric and perfect fit. I can wear this shirt lounging around the house or running errands during the day. On the really hot days, I stay cool and dry in this shirt!
M
09/10/2020
Mark Just found my favorite t-shirt
This t-shirt is my new favorite! I find myself wearing this shirt every few days due to the awesome fabric and perfect fit. I can wear this shirt lounging around the house or running errands during the day. On the really hot days, I stay cool and dry in this shirt!