chr4598814wrote a review of Giro Jackson MIPS Helmet on March 2, 2019
Familiarity: I've used it several times
I don't really have the luxury of being picky with helmets. I've got a pretty oblong head, meaning that usually only an XL will fit without uncomfortable pressure fore and aft. And of course then I look ridiculous, and I could probably stash extra gear in all that space on the sides. My last helmet from K2 fit in this category and I didn't shed tears when it took an accidental ride down a long gully and disappeared forever (or until next spring).
After trying on a ridiculous number of replacement helmets, I finally found a Goldilocks solution in the Giro Jackson MIPS, and in an L no less! As a bonus it's reasonably light, doesn't look too bad and it works well with my goggles. I don't have a very sweaty head, so I've been able to wear it on the uphill on colder days while touring. The venting seems perfectly adequate, but at the MSRP price point a lot of helmets have adjustable venting. I find it's fine without, but I'm also in a dry climate and don't have a sweaty head so YMMV.
Now for a couple minor nits to pick:
- The outer shell plastic seems a bit softer than it looks. I've picked up some noticeable dings despite not really making significant contact with anything and only having worn it 10 days.
- While perfectly functional, the rear goggle clip seems a bit flimsy and I won't be surprised when it breaks.
Overall it's a good helmet and I'd recommend checking it out (and others in the Giro line) if you also have a really oval/oblong head and have trouble finding helmets that fit well.