Originally Posted by
scottfsmith
... I can't imagine putting on a cap in hot weather, maybe it works but it seems so very wrong.
I couldn't imagine wearing a cap under the helmet either and didn't for 30 years. Then I tried it. Surprise! I as not hotter. No surprise, much less issue with sweat in eyes - very nice. But best of all, my helmets stayed so much cleaner and nicer. Better smelling. And far less work to keep clean. All I have to do is start my rides with a clean cap. I'm warmer on cold days. Keeps my serious hats clean on still colder days.
All for something as difficult to manage as underwear. Put on a clean one. Ride. Toss in the wash. And my life is simply better. (Not much, it's just a hat, but still ...)