the helmet is fine but I don't think it's worth this money and I'll explain why. as a material it's perfect and very light, but some parts of it don't hold up that well. for example, at the back of the neck where it has a little cushion, every time I take off the helmet that comes off too, the inner lining if you take it out then be patient and pray to get it back in and fastened, it has quite a bit of aerodynamic noise and that's logical since it's a track helmet but okay it's not terrible, as sound insulation it's simply perfect you can hardly hear anything, as a size it's a little small it's not like the agv k6 which fits perfectly and that's its big minus. the pinlock is simply perfect it goes in easily and is exactly the right size and I can't understand how some others wrote that its size is wrong, and as a material it's perfect both day and night it has no distortion at all nor any fogging, would I buy it again....... yes because it is quite high quality as I said in material and light but maybe I would choose 1 size bigger.

Owner of PREMIER HYPER CARBON for exactly 2 years. Used strictly within the city, 45 kilometers daily. All seasons with this helmet (don’t tell me "dude, in summer you need a different helmet, etc."). It is an average-good helmet. Overrated for the €550 I paid for it. The lining is ok, good, it hasn’t "fallen". It’s still fluffy, meaning it still fits snugly on the head. It’s not silent, like almost all helmets, I’d say it has average sound insulation, manageable, don’t go crazy. D-ring fastener is ok. The pinlock, however, never fit well. And also, from the pressure it exerted (what pressure, you’ll ask? Yet...), it cracked the visor at the points where the pinlock attaches. It wasn’t worth the €550. But despite all that, it’s an average to good helmet for everyday use.

I have had the helmet for about two weeks now, I can't believe there is such a helmet with ECE 22.06 certification and it is really so light, I used to have a helmet at 1350 grams and I thought that was light, as soon as I wore the hyper carbon I realized that the bar was raised sharply.
The visor (both clear and black) is of unparalleled quality and especially the black one changes the colors you see in the environment outside a bit, don't get me wrong it's not so intense to cause a problem anywhere but it's just enough to help especially on sunny days that are coming fast! Also the metal clip they have is of great quality and offers a very strong and reliable fastening, I expected it to be a little quieter but it surpasses the average by far so satisfied in this aspect too!

My head is 58cm and I had taken the M-L which did not fit well on my head, the MEDIUM fit perfectly on my head!