After testing some of the new Tees I believe that the sizing has changed just a bit since 2021. Previously I preferred a Medium but now in 2022 of December I wear a Large.
All the Tees are Next Level which is a premium slimmer fit tee with side seams. They are made from 100% combed ringspun cotton.
While they are form fitting, they are not extremely tight but you may need to size up I have found. I nomally wear a medium but for these Tees I prefer a Large. I am 5′ 11″ 155 to give you an idea of what you might need.
If you’re unsure about the size you need, refer to the sizing chart on each Tee page. This will give you the exact dimensions of the Tee you will receive.
I found that the Tees will shrink just a bit but not very much.