Roll-offs are installed on the goggles by placing a full canister on one side of your goggles while rolling the clear sheet into an empty cartridge placed on the other side of the goggles. Then when you need to clear your goggles, you pull a pull cord to get a clean film.
You Need Goggles Made for Roll Offs
Most of motocross goggles are made for roll-offs, while other goggles are made for tear-offs.
How can you tell the difference? Goggles made for roll-offs have two canisters attached directly to the lens of the goggle on the right and left side. Goggles made for tear-offs will have pins attached directly to the lens that the tear-offs will hook onto to stay in place

For our model FJ071, you will get both systems- tear off system and roll off system. It is easily to remove the roll off system lens and install the tear off lens.
The 2 for 1 goggle system will be more popular in the current market!