It is basically one unit: Two lens layers with a seal in between. If your inner lens is super scratched, you replace the whole unit, which is what you have on this page. Ripping of the inner lens is pretty crazy advice. If a grizzly bear just attacked you on a mountain in the middle of nowhere, and somehow only mauled the poop out of your inner lens, and you survive and there is a blizzard raging and you had to see to straightline it to a hospital, then maybe you would rip the inner lens out just to survive. Even then, your lens will be fogging up so badly it will barely be better than a ruined inner lens. The two layers and a seal are THE reason goggles don't fog up BADLY. It is like a double-pane window, and that is what keeps you seeing on the mountain in cold weather. The Fire lens looks RAD but is not a great choice for MOST CONDITIONS you will find on the average hill. Great for Super-bright bluebird days, but you will hate them when it is dumping pow and the clouds are out. Go for the blue iridium, G30, Pink iridium, lenses that only block 30-60% of visible light, unless you are just after a specialist lens for specific conditions.

o you got it all wrong, these are dual lenses and the inner and outer lenses cant be replaced individually...every lens is a two layer dual lens...and if ur inner lens is scratched then ur basically screwed and have to buy a new lens.2 last things, fire lense=SICK!!!!!!!!!!!!!!!!!!!!!!!!!!!!and if ur desperate ( meaning your inner lens in scratched so bad that you cant see through it) then you can rip it off of the outer lense and sarifice lots of anti-fogging capabilities, but youll be able to see...thats what i had to do when i scratched my inner lens, it sucks--------------------------The point is that if you buy this lens, you'll be getting the whole thing as a two-layer lens, so you don't need to worry about which one is scratched.