This pajama set consists of shorts & a tank top. With paint spatter, checkers, smears & splashed in designs, it comes across as a "gritty" look. The theme here is Sonic & Shadow & they made sure to decorate both pieces, which is nice. A Sonic portrait, jumping-twist stock art, Shadow pointing, the modern logo & a Sonic vs Shadow racing scene are on the top. The name of the set is "Speed Highway" but is that the background/zone they are in? It's hard to tell with the photo. The shorts have Sonic & Shadow stock art scattered about them, along with portraits.
The top also has something slightly unusual going on: it is 2 layers of fabric. Notice how the whole outside is red, and then the interior is all black, not just the collar. This is a kids size item. This item should be in the SonicGear Store (unless it sells out) 2014