The quality of the material seems pretty cheap and does not look as if it would last.
From the fit ago I found the helmet relatively easy, although I have exactly one Kopfumpfang from the example given. Very disturbing I found that the adjusting selectively pushes from behind on the head. This is very uncomfortable and probably in a fall on the back of the head not very good. Therefore I have decided to return the helmet.
All in all, just no longer think I this is a product which will meet for its price, however.