It's actually a fairly challenging task to find a plain dark L-sized t-shirt.
>walk into the store
>approach a pile of t-shirts
>S
>S
>S
>S
>M
>S
>reach the bottom
>no L
>approach the next pile
>repeat 4-5 times
I often just end up ordering them online, and even then the stock is almost always shown to be low or very low.
