Really love these bibs and can use them on all but the coldest of southern California days. Have a pair without the microfleece lining but they aren't much warmer than regular bib shorts, so these have become my go to bibs for cool weather. Used them maybe 5-6 times so far and like the chamois just find. Oddly, the lower end PI chamois' seem to be more comfortable for me than the higher end (Pro, etc.), go figure. I am 5'9" 175lbs (52 years old) and wear a size medium comfortably.
This is a quality set of bib shorts constructed from light thermal fleece material. Good for cool - not cold - rides. The shorts themselves are not particularly remarkable, just a solid set of bibs with a mid-range chamois good for medium-length road rides. Not a lot of compression for speed or interval work, and the chamois isn't built for long endurance rides. A solid set of bibs for shoulder season base-mile rides.
Good fit and feel, lower leg doesn't ride up. While still confortable, straps do not stay flat and bunch up easily. (maybe wider would do the job?). Also straps could be less elastic, so the waist held higher, avoiding the need to pull it up manually.
Purchased these PI knickers to add to cool/cold weather gear for North Florida winter riding. Have used down to high 30s and remained comfortable. I like the brushed interior finish. Only knock is that the crotch and chamois are a bit long/loose. That may improve with more washings, but is a small negative right now.
Comfortable and warm 3/4 bib tights. Good grip just below the knees. The elastic band does not ride up the leg. It takes a wash or two to break in the chamois. I have worn them through 4 rides thus far. For me they are best for 50 to 60 degree rides (fall & early spring)