even though they are not shirts you can still make a decent outfit with these classic t-shirts

here three examples:

at the moment it's just, bumblebee, wheeljack, motormaster

but if I see that he has support I will make more t-shirts of other characters

here the link:

https://www.roblox.com/catalog/13706174234/wheeljack-g1

https://www.roblox.com/catalog/13706188789/motormaster-g1

https://www.roblox.com/catalog/13706158828/bumbeblee-devastation