City of Champs Tee - Sports? Yeah, Pittsburgh knows a little bit about them. In fact, Pittsburgh has been playing organized sports since before the Civil War and was the first city to play professional American football. Timeless and versatile, our tri-blend tee will quickly become your favorite tee. Made from a cotton and polyester blend, with a touch of rayon. Lightweight, breathable and has a subtle texture to give it an authentic vintage look. It's pre-laundered for an extremely soft feel, and it may shrink a bit on the first wash and dry.