This is the limited edition "Charge!!" Aquabats superhero t-shirt in black. It features an extremely buff caped Aquabat standing proud with his fists on his hips. This shirt is notorious for once being available through the Hot Topic online store. It is currently available in Youth Large from the Aquabat's online store, or in sizes S through XL from this eBay seller.
The original "buff" Aquabat