A nice touch about this shirt is the graphic print that wraps around the sleeve.
The Mountain American By Birth Biker By Choice Eagle Motorcycle TShirt Brown 2XL
You will see the regular fit keeps the shirt from gaping at the buttons or seams.
2015 Mountain Jo American by Birth Biker by Choice T-Shirt 2XL Brown Tie Dye
You will see the regular fit creates a smooth line from shoulders to waist.
The Mountain Vintage 2XL 2003 Steam Engine Train TieDye TShirt Blue Ted Blaylock
You will find the regular fit keeps the sleeves at a comfortable, not tight, length.
Vintage 2004 THE MOUNTAIN TIE-DYE STEAM TRAIN T-Shirt XL locomotive
What stands out about the short sleeve is the way it opens up the shoulders.