Oakland Invaders | USFL shirt creates a retro, vintage, throwback look. With extreme durability makes this t-shirt withstand repeated washings and still remain super comfortable. The USFL (United States Football League) was a short-lived but memorable professional football league in the 80s. The league started in 1983 and went defunct in 1985. Some of our favorite NFL Stars appeared in the USFL including Reggie White, Herschel Walker, Doug Flutie, Steve Young and Jim Kelly. This throwback classic is a must for any football fan.