More awesome metallic ink is used in great amounts to create these two new (and popular!) designs. The blue one is a varient of a red one on Sonic Shirts Page 2, but the Shadow is all new, and quite classy, with a 'cut' down half of him, and geometric lines in the background. These should be available at Sears and the Top Heavy website--in sizes for anyone to wear!
Silver ink with a 'dotted' texture makes this great new design really stand out. This shirt is "Semi-Rare" in that it is supposed to be at Sears, but supplies are LIMITED and it is not all over the USA. If you see this, by all means pick it up.
It is also unusual in that it is a long-sleeve being released in the spring line. This has Sonic, Shadow, and Tails, who is looking excessively cute for some reason. They're backed by a Sonic head symbol, with the Japanese Sonic X logo.
One of Top Heavy's earlier designs, this is also available in sizes that should fit anyone. This was likely the first instance that the "Charge" pose was used, and with the white streaky aura effect, it works well. Knuckles and Shadow line-art back up Sonic, who stands among Japanese words and the Japanese Sonic X logo. The words say 'The Stongest and the Fastest' (maybe a play on "Fast & Furious") to describe both Sonic & Knuckles. Translation provided by Blue Sonikku