This shirt can be found at Walmart in 2012/2013. It is a plain white shirt, meant to look old. It has 80s type brownish rings, faux wear & classic running Sonic with his name as a simple outline.
At the right is a Walmart shirt that may not have a paper tag. It's got the logo at the bottom & in the collar though. It's a mottled blue, with checkered stripes & "Speed Freak" written in red & white itallics. The arrangement of the elements highlights neo-classic running Sonic pretty well here, in his ring.