Replacing Crowbar lenses is not all that difficult. I routinely swap lenses depending on weather conditions in the parking lot of snowbird before I get on the lift. I would suggest not getting fingerprints on the inside of the lens by working them in from the outside and using the frame. When you are done buff the outside of the lens with your goggle bag to remove fingerprints. If you do get some on the inside, just be very gentle when you clean them off with the google bag. Hope this helps.

Replacing Crowbar lenses is not all that difficult. I routinely swap lenses depending on weather conditions in the parking lot of snowbird before I get on the lift. I would suggest not getting fingerprints on the inside of the lens by working them in from the outside and using the frame. When you are done buff the outside of the lens with your goggle bag to remove fingerprints. If you do get some on the inside, just be very gentle when you clean them off with the google bag. Hope this helps.