Pearl Izumi Elite AmFib Tights for Cold Weather
When winter arrives, tights become mandatory. My knees do not like the cold, especially under torque, and pushing cold knees hard is a sure way to damage the cartilage over time.
When it gets below 45° F, the Pearl Izumi AmFib tight @AMAZON keeps me comfortable down into the 20° F range. Along with a shoe cover and a wool cap under the helmet, cold weather cycling becomes reasonably comfortable.
One can try to cheat on warmth with a lighter tight like the PearlIzumi Thermafleece tight, but that plan is not successful when one has to descend for 5 minutes or more in sub 45° F temperatures— knees might as well be on ice.
The AmFib tight is far more effective at keeping wind out than the Thermafleece tight because it has a windproof membrane on the front half of the tight (so put ’em on straight, not twisted around the leg).
In short, serious cyclists must own BOTH the AmFib tight and a Thermafleece tight (and a very light weight tight als0).