Plain black t-shirt... Sounds like you ain't representing, being a loner. You might want to look into having a sit-down with the dominate t-shirt gang err... club in your area.
I would be concerned that the guys wearing the white tee shirts may not wave when they pass...or nod...or are we not suppose to nod...or is that wave with one finger...I give up.
Only shirts I buy. Best cheap shirts you can buy. Get em on sale, 5 for $30. 4 black and 1 navy blue for work.
Thats 5 shirts that'll last years OR 1 HD dealer shirt that you can spit through that will last 6 washes. DUH!