I’ve been using the knock off version of these for years - the seal is great (they are made to block out water) and I can sleep through snoring and garbage trucks and the annoying air conditioner. Do not get the real Mack’s as they can be little too sticky and stick to your pillow (it doesn’t come out in the wash) but…
I’ve been using the knock off version of these for years - the seal is great (they are made to block out water) and…