Patrick Goodman wrote a review of Petzl Sirocco Helmet on January 10, 2014
Familiarity: I've put it through the wringer
I have taken this helmet on multiple international expeditions: A worry for me when I'm packing for a big trip is weight and I'll cut corners wherever I can; but when it comes to lightweight helmets, it is generally just not worth bringing anything other than a helmet made with an ABS shell. If the plane ride doesn't destroy them, the porters/approach will.
Not the case with this helmet!! It is tougher than woodpecker lips!!
Very light. I hardly notice it unless I'm in a chimney or a cramped space.
The color is bright, but in the mountains I appreciate this aspect greatly.
Holds a headlamp very well.
Plenty of room for a warm cap underneath.
It breaths OK, hard to get a helmet with good coverage to breath very good though.
The magnetic strap clip is very cool, it has a tendency to collect some debris, but I just wipe it off occasionally.
The EPP also holds custom artwork very well...see pic (art by Jeremy Collins).
If you want a light, durable helmet, this is the best one made, bar none!