This Shadow shirt is a bit of a mystery, is it the Kohl's store exclusive from Wanted Gear? It might be. However, it looks like something TopHeavy clothing was making during their mid-Sonic X period, with the old fashion scrolly leaves, white ribbon & semi-tribal background. The pose is nice/active, and his graphic is big. The white also isn't the most common color. A great and different looking shirt, especially for Shadow fans! But when was it released? 

Remember those old 'tiny kids only' Sonic clothing sets that came out around Sonic X? Remember how frusterating they were because some of them had cool designs but they were for like, 5 year olds? Well, here we go again. This is a tank-top & sports pants set in yellow & blue. It says "Daredevil Rebels" & has Sonic, Tails & Shadow with tiny dots background. The pants appear to just be plain with no Sonic content. The colors, tank top, & small size are highly reminiscent of the Sonic X stuff, but with new 2012 modern pose Tails & the new tag, these are definetely a 2012 thing. Could be a Sears set, do write in if you know where this is!

Here is a rather oddly plain offering from Bio World. A mottled gray tee has modern Sonic with just some dotted & dashed blue & black lines for the background. It's pretty abstract, but the Sonic art is nice & big. Good, if you don't already have something like it. 

This shirt is called "Prism Glow Sonic" , which makes sense, as it uses a rainbow/prism like effect to 'shadow' or outline one side of the modern Sonic walking/pointing art. The logo is broken down interestingly as well, with "Sonic" in large yellow vertical letters while "The Hedgehog" stays in its reversed red block across the bottom. The black tee really makes the colors stand out and look cool. This one is well designed, and doesn't resemble much else. Good, if you've already collected lots of shirts but still want something different. This is a winter 2012 or 2013 item. 

This is called the "Sonic Yellow Splash-Out" tee. Reasonably named, the black shirt has a large modern Sonic, but with paint spatter/splash of yellow backing/outlining him. The logo is a matching yellow color. The bright color on the black tee is attention getting. Where can you find this at offline retail? It's in the Gear Store, but it ought to be available elsewhere as well. This is a winter 2012 or 2013 item.