Goggle Keepers, or Goggle Retention Straps are designed to keep your goggles on your helmet at all times under any circumstance.
Simple remove your two back bolts on your ACH MICH helmet, place one goggle keeper over the whole in your helmet and reset your screw.
Simply place your goggles on your helmet and lay your goggle strap over the open keepers you just installed on the back of your helmet and then secure your snaps.
To remove your goggles in an extreme situation, you do not need to worry about securing them to the front of your helmet. Your goggles will remain secure.