Aaron Ostrovskywrote a review of POC Trabec Race Helmet on April 13, 2015
Familiarity: I've used it once or twice and have initial impressions
I have a 54.5 head and went with a M/L, this is the best fitting helmet I have ever owned (I usually fit best in Giro size M). Ventilation is really fantastic (my head actually got cold!). It is not a small helmet but it has that POC look, which I like. I will not that this helmet has comprehensive coverage around the side of the head (see photo) and will not fit all sunglasses (my Tifosis didn't work too well).