You will find that an unbranded shirt like this is hard to beat.
Ford T-Shirt Mens Size M Cream Mustang Street Legend Graphic Racing Casual Tee
This tee uses a regular fit, so it hangs straight from the shoulders to the hem.
Crown With Name Street Art T-shirt
You will find that the small size gives a neat appearance when untucked.
Crown Graffiti Street Art T-shirt
The small size feels light and airy against your skin all day.
Main Street of America Route 66 Hot Rod Long Sleeve T-Shirt
If you are between sizes, the small runs slightly smaller than average.