Seeking "Medias Rojas" Red Sox Shirts

[bitchinmona]

I just *know* I've seen these shirts. I've seen them on people. I've seen them for sale somewhere. For some reason, I now am in the uncomfortable position of beginning to wonder if I have imagined them.

I saw Medias Rojas. I saw Stocai Dearga. I've seen Calzini Rossi, Rote Socken, and (perhaps understandably) 赤いソックス. Where have I seen them, though?