At first glance, the shirt actually makes a good impression, because the color is great and the fabric also feels quite pleasant. The fiber should be breathable and made of 100% polyester. On the label it is referred to as "SH Cool" one company "Shenghong Chemical Fiber".
If the shirt you look more closely, you realize to little things, that it is "Made in China". In my copy, for example, were a few threads from the seams and logo on the inside of the back was printed wrong. The protruding threads of course you can still clean cut and logo is seen dressed at all, but it is natural that the price is not without reason under 10 euros.
But is annoying especially the weird size or the cut. As a functional shirt, the one usually used for sports, namely it should be considerably longer than a regular t-shirt, actually, it is shorter and falls also from smaller.
Who wants to try it, should definitely order a number (perhaps two numbers) is greater!