I initially concern that the Melon-helmet on size XS-S is too small (had a head circumference of about 51/52) cm. The concern was unfounded and the helmet can be optimally adjusted both in the neck as well as vary the interchangeable upholstery in width. The belt can be adjusted perfectly and the closure is to be solved by the magnet and easy snap. Only I have the feeling that the belt itself always solve anything and the substance almost slips. But can straighten if necessary again before use. Tried fall he is (knock on wood) not yet. The color in white / silver I find also good. The helmet does not shine as much as in the photo, which I personally like good. Small drawback are the real much brighter silver stripes, from afar, the helmet just know from. Therefore, only 4 out of 5 stars.