So far these have worked well for me on cold rides (30F or lower). They block the wind and kept me dry when I rode through some light rain. They stretch but not as much as Pearl Izumi's thermal tight but they fit well and are comfortable.
My only complaint is it can be a little difficult to get the cuff over my large (size 13) feet when taking them off due to the limited amount of stretch. A zipper might be useful for future versions.
These are a comfortable, well made, high quality tight that keep me warm in sub freezing temperatures. Getting my foot through the leg opening takes an intense moment of concentration, but a little less so each time I put them on. They are oddly loose in the waist but snug everywhere else which keeps them from falling down. A drawstring in the waist would help. Overall I anticipate staying warm for a lot of winter miles.
Keeps me protected from wind, rain and cold on my winter rides. They replaced a pair with prior generation technology and the improved fabrics are noticeably better. Very happy to have warm legs when I ride.