Cap? Far from it. Even if the helmet is not immediately recognizable as a helmet - it is simply not tight like a cap on the head, and therefore he is not as inconspicuous as the manufacturer claims. But I am still very happy because the helmet very well sitting at the head, a built-in red LED rear light has and is easy. Disadvantages: It does have ventilation holes, but there is no way to go through with an appropriate helmet Rope Castle here. Abus Helmet Home is therefore also as an accessory only limited use, but I recommend you still additionally. The processing is not quite as great as one would expect from Abus: adhesive residue on the hard shell, dirty lines on the fabric cover, not quite straight and sewed something asynchronously.
Contrary to the information is according to M sticker inside the helmet suited to 59 cm! L starts at 58 cm. I have 58 cm head circumference and even then when M is still some room! At the narrowest it is on the sides. So if you have a normal head shape, take prefer M if you have a very round head, rather L: the helmet shape is slightly oval for standard heads.
All in all: A helmet is a helmet. Take care of yourselves.
