These are the most comfortable bib tights I've ever worn. They conform to your body with no chafing and they look good too. I've ridden in 30-40 degree (F) weather and did not feel like they are as warm as advertised. I've also worn them on a climb when I got heated up and they didn't feel clammy. They really breathe well.
These really have exceeded my expectations, especially the chamois. They do run small it seems so I have to struggle a little to get them on but being heavy for a cyclist so I can't really fault Castelli. These keep me warm enough down to about 35 and the chamois truly is the best I've used so far. I've done a couple of 50 mile rides with minimal discomfort, if this is their mid-level offering I would love to see how the top-level bibs perform
I'm 5'11 160 lbs, 32 waist, 33 inseam. I ordered a large...fits perfect. Snug...but light stretchy material. Great chamois. Great for cooler rides in the 55-65 degree F range or under wind pants for winter fat biking.