I come from a kabuto mtb helmet that I've bought in 2016, and I didn't feel a night and day difference. Ventilation is similar, maybe in some situations the propero is a bit better ventilated, but it's not like turning the AC. Maybe because my previous helmet was also a high end helmet. It definitely looks better, but the trifix is just a couple of mm of rubbing my ear. Luckly, it didn't

Everything about this helmet is perfect! From the color to the size! :)

I bought this helmet two times now. Last year size L for myself and this time size S for my son. Both fit well

Previously have really enjoyed several medium Sworks Prevail and Propero helmets. I trusted that because the Propero was so good, why would the Propero III be any worse? The non-adjustable trifit is garbage. It smashes my ears and there is nothing I can do about it. My head is 56cm so the size is right. No wonder it was on sale for so cheap. I'll be returning this.

Fits so good to my head and very light weight, highly recommended. Quality is outstanding and yet super stylish.

Very good fit and build quality.

Really disappointed. Helmet seems good but no adjustments of the Y bracket under the ear. And the straps are very short. So it cuts under the ear. I have to try and resell the helmet.

As always specialized service is great and product is magnificent!

The lack of adjustable height of the y-connector piece below the ear straps made it such that the straps pulled up on the bottom of my ears, so even though I had the correct size helmet for my head diameter, it didn’t fit comfortable.

A helmet that can’t adjust in the ear is useless and only meets the needs to those that have the right distance already preset. This helmet might be safe in terms of safety but without able to adjust the ear distance/fit it can cause ear rub/pressure that is not comfortable.