keith G.wrote a review of Castelli Polare 2 Bib Tight - Men's on December 11, 2017
Familiarity: I've used it once or twice and have initial impressions
These are extremely well made bibs for cold temps. It's still in the 30's here and I think these bibs will be best once we are below 30. They are good in the low 30's, but I start overheating getting close to 40. As is classic Castelli, the sizing is nuts. I'm 5'8", 153lbs and a size L is really tight. I also find that the ankle closure is way too small. In winter I have layers of socks and overstocks. I can barely get the ankle zipper closed over the sock layers (I don't like the socks being the outer layer, I prefer the bib pants to be over the socks). I'll post again when it gets into the 20's and lower!