[RealtorTommy]

I hope this helps new and oldies like me...if you have a double layer lense and it starts to come apart and fog up...take it out of the goggle and place it on a towel in the oven...set the oven at it lowest setting and keep the oven door cracked open a bit to release the heat...now be careful..you don't want to melt the lense..I stood by and watched it until it gets really warm..almost to hot to touch...pull it out and set it on the counter or table with towel under it...when it's comfortable to touch...well not really, but don't get burned...press all the way around the seal...hard...keep doing it until it cools..the heat should get all the moisture out from between and reactivates the seal....hope this helps...back to the post...soap and water...microfiber or silk cloth..it seems to help here in hot florida to "coat the inside and outside of the lense with soapy water the night before and wait until the morning to clean them up..and it leaves an invisible film.....no fog problems...
Never use papertowels and make sure no sand or grit is on whatever you use...