David K.wrote a review of Oakley Flak Jacket XLJ Replacement Lens on June 4, 2013
I purchased the VR28 Polarized after researching a good low light lens. I use them for hikes and for volleyball, both for sun protection as well as eye safety from getting poked in the eye. My XLJ's came with dark lens already, so this is a great choice for medium to low light activities. I loved how it got to my doorstep in no time, and love the guarantee by Back Country if something ever goes wrong with my lens they will take care of me.