But I have to have my lucky ball cap . . . . .Oops, I misread your original post and I didn't realize you were wearing a synthetic base under the cotton.
My point about the cotton in the pack being useless weight wasn't exactly about it being "heavy". My point was that a damp cotton in a pack is useless.
And if your hat is getting sweaty, why are you wearing it? The 1st way to regulate temps is to adjust head gear.
Seriously though, I am typically hunting remote from home. It is days between showers. Hair gets greasy and dirty and I wear a cap to help keep the bugs, sticks, bark flakes, . . whatever off my head. If I feel myself overheating I did say I take the cap off. However, it is with me and it is definitely not scent free.