It is large for a Medium size with loose sleeves and very low quality. The color does not match the photograph.

While in the photo it appears to be gray in color and even and aesthetically pleasing, in practice it is very dark gray bordering on black, like ink-stained.

I bought the Large size and it fits me just right on the shoulders. I recommend getting one size larger than what you normally wear. The color is good.

I don't wash it with hot water, however, over time it shrinks quite a bit. I would recommend getting a size up for this reason.

Nice quality, comfortable when worn, but its major downside is that it attracts lint terribly.. (in the black one I have it shows). But for 10-12 euros, it is a very good choice clearly.

At 10 euros, it is the best purchase for a shirt! It is warm and appears to be of good quality. With washing at 50 degrees, it didn't suffer any damage.
BUT
Firstly, the color (Grey) has nothing to do with the photo. It is actually a dark gray towards black and it is much better than it looks.
Secondly, it is unlikely to be 100% cotton. It probably has 20% nylon like most, because it appears to shine on the inside. Nevertheless, it is soft and doesn't bother at all