Nier: Automata T-Shirt by Angel Saquero aka Saqman. "The Weight Of The World". The main protagonist is YoRHa No. 2 Model B, or "2B" for short.
This shirt is sold by TeePublic. TeePublic is an e-commerce platform that connects independent artists with their fans and allows them to sell their art on t-shirts, apparel, and accessories.