Bape is a Japanese fashion brand designed by Tomoaki “Nigo” Nagao. It has quickly become a cult brand with both Japanese youth and American hip-hop stars including Pharrell and Jay-Z.
I think you can only buy the clothing at official Bape stores. I got this T-shirt at the Fukuoka branch a couple of years ago. It looks much better on my friend Chris than it does on me. Maybe I need to hit the gym.

Bape Clothing, Japan
An impressive photo!