Saying farewell to comrades. The T-shirt is of Mirai in her Solar Marine uniform geared up in a Retrograde Suit which you may have seen in the Mirai Millennium Design post.
The T-shirt is available from J-List for 19.95 USD where 25% is being donated to the Japanese Red Cross Society. I'm not accepting any royalties from sales and the remainder just enables J-List to cover production costs.
The text on the T-Shirt is "Ganbare Nippon!!" [頑張れ日本!!] which in this case means "Keep fighting, Japan!!" or "Don't give up, Japan!!"
There is also a sleeveless version for the ladies or Hideyoshi's out there.
The print on the silk screen T-shirt is not full color however and Mirai's face does look a wee bit white-ish so avoid if that would not be your cuppa tea.