These are bombproof bib tights. I have worn them down to 12 degrees fatbiking in the snow. They have great protection on the front versus a traditional tight that when riding in the rain can get quite cold and wet. These are for those days that most people won't go outside. Love them! I am 6'2" and about 175 lbs. I originally ordered a large, but went to a medium. The seem to run a bit big in my opinion. I am a med in Pearlizumi cycling shorts too, but a large in Castelli.
I have ridden with these at temperatures as low as 25 degrees F, or sub-zero in Celsius, I guess, but even down that low, I didn't feel a bit of cold. They do feel extremely snug when you first try them. It's like pulling on a wet suit, but you get used to it, and it feels fine once you get moving. I'm 5'10" 185lbs and wear a Large. The Pearl Izumi website showed a model 6'2" 195lbs and said they wore a Medium! I can't imagine how tight that would feel...
Excellent fit. I'm pretty thin and many cycling tights and bibs bunch up on me. These provide a comfortable snug fit. Excellent chamois that holds up fine for all day rides. Warm in clod weather (lower 30's) and seem to hold up fine in light rain. I'd buy them again.
I finally had to replace my old bib tights. I used to wear a pair of bib shorts under my bib tights, but these PI bibs have a awesome chamois. They are perfect for cold weather riding (extra layer in the pelvis region keeps cold wet away). I ride in PNW cold and rain (19 degrees) and these tights kept me warm and dry.
This may be lengthy:
First of all, I HATE riding in the cold. Like I'm that guy who is always the first one to bust out the winter gear and feel that I'm particularly whiny and sensitive to the cold. With that in mind, I must say that these tights are spot on. They are pretty warm and the inner fleece is definitely thicker than other heavier tights I've owned (Louis Garneau, Sportful) and the AmFIB stuff does a decent job at blocking the wind. Now mind you that that AmFIB stuff is fairly abundant so it may feel a bit restricting at first, but if you're like me and hate cold winds than you'll really appreciate it. The bib straps at first seemed very flimsy but after about 15 rides I'm convinced they're sturdy enough and basically feel invisible on my skin (over a base layer). The chamois is AWESOME IMO. Now everyone is different but this chamois to me is excellent and it's probably one of my favorites ALL TIME. The rear pockets are great and pretty much invisible. They hold things very well and don't look like you're wearing a cargo system on your back. They can hold my wallet (Rigid wallet), keys, 2 candy bars (snickers) and probably a few CO2 cartridges if I wanted to stuff it. I would definitely buy again. I've ridden in 35-45 deg weather with 10-15 mph winds and 50-90% humidity (that's the cold that makes your bones ache) for 3-5 hours and they kept me warm. And did I mention that chamois?? Totally comfort even after 5 hours (but that's my bum, not yours)
I'm more of a wool knickers person, but since those aren't made anymore, these are my goto for under 40F. The wind resistance is better than anything else I've worn. Only ding (but not worth a star) is the foot opening is small and could really use a zipper.
Got these in prep for some early winter riding in Colorado. Worked a treat in sub-20degF riding with 10-20mph winds. Fit is a bit tighter than my other bib tights, but loosens up comfortably as you ride.
5'10" and 175lbs, wearing a Large.
Love these. Good insulating material, extra panel in front for warmth. Have worn them down to temperatures in the high 30s and stayed warm.
Sized small - a medium was too small (waist 33 inseam 32 and 172 lb) but large fit well.
I've ridden them several times, bibs are the way to go, they stay in place and not constantly having to pull them up. If I bought them again, I'd get something with out a pad then I could wear my summer shorts that are really comfortable underneath.
I wear these down to 15 degrees F and still stay plenty warm. I like that I don't have to order these two sizes up just to squeeze into them and only find out that the straps are not long enough- the size large fits me well as I weigh 170-175 lbs and am 6ft tall. These would fit even if I was taller or gain a few pounds during the holidays.