In reply to McT:
I wonder if "failed to get a UIAA rating" is the correct terminology.
We don't know if the helmet actually failed the test, or didn't bother to take it. Lots of companies don't bother. It looks like BD's half dome helmet isn't UIAA rated either. Or CAMP's Speed 2.0 , Or Mammut's Rock Rider. Or the Shield Lite. Or the Kong Scarab. Or... I couldn't easily find info on the Tendon or the Edelwiess. UIAA testing is expensive and unnecessary (from the point of view that you don't need that certification to sell your product). Many companies don't see the point.
Had I written this review, I'd like to think that I'd point out that the Sirocco was the only helmet that HAD passed the UIAA certification in this review, but I don't think it's fair to jump on the reviewer for not pointing it out. I would wager that most climbing helmets on the market do not have UIAA certification.
Post edited at 21:07