This shirt is called "Watercolor Summer of Sonic". Is it really from the fan convention of the same name, in 2016? It's not all that 'watercolor' effect, maybe a 'wash' effect, but it's sure not painterly. It's a much simplified version of Sonic in the wing-ring from the title screen. It has a simple 'smily face' for Sonic's face as like a 'kids line art' look. The logo is 'hand lettered' across the ribbon at the bottom. The shirt itself is a long sleeve tee with black collar & sleeves, with white body. Using this different art style to portray the very familiar title ring gives the shirt a unique look.