No it's a one size fits all T-shirt. I hate those, it's not too much of a problem but still.
For anyone new to the game4game website, you can use the English ordering guide here:
game4game ordering guide for those without Google chrome.
The only difference is the game in the guide, which is sniper. Also please check the basket carefully. some user have been ordering two copies because they click add to basket again by mistake.