gilipollaswrote a review of Giro Pneumo Helmet on April 15, 2015
Familiarity: I've used it several times
Just bought this helmet on clearance last week, so maybe this review won't help a lot, but I really like this helmet. It's the first high-end road helmet I've used. I've had a cheaper Giro Encinal from probably 8 or 10 years ago that served me well, and have been using a Bern Macon for the last year or so on my commute to work, so that's my perspective.
I bought the helmet mainly for my daily commute to work in Atlanta, where it's hot. Ventilation is fantastic, especially coming from the mostly vent-less Bern helmet. Ridiculously light, I look over my shoulder for fun just so I can feel how light it is.
Comfort is great, the RocLoc really snugs it down on your head, and adjusting it while it's on your head is very easy. Padding is minimal, but sufficient, and it fits my head well with no pressure points or irritating spots.
I got matte black, it's a really nice-looking color, but not the most visible. Very understated and stealthy.
Compared to my Bern Macon, the sizing was a bit off. I have a medium in the Bern, which fits large on me, I probably actually need a small. So I compared measurements for the Giro, and the lined up. I initially ordered a small Giro Atmos, and it was far too small for my head. Medium is the perfect fit. So either Giro runs small, Bern runs large, or a combination of both.
Compared to the Atmos, I liked the Pneumo more. You get a visor which is a nice plus, but I like the shape, colors, and the Pneumo feels a little more sturdy in the materials used, like the chin strap, shell, etc. Both are great, but the Atmos is lighter, at the cost of durability of some materials.