Ricky Johnson used to give me his goggles after wearing them one time and they always had the top of the foam (where it sits on your forhead) a little shredded. When I asked him why, he told me he puts a panty liner on the top of the goggles. It actually works quite well. I use them in my hockey helmet and sometimes when it is hot, on my bicycle helmet. My hubby uses them, too. Rick said many of the pros, in his day, where doing it!
Brenda