They fit the standard Half Jacket frame perfectly. The XLJ shape gives a little more coverage than the standard shape lens.

There is a video on You Tube that shows how to make the switch.

The quality of the lens looks good but they seem a little lighter than 20% transmission. If I were ordering again, I would get the two pack which has both this lens and a darker one. The cost of two sets polarized VL lenses is about the same as one Oakley polarized lens set.

After 30 days of use there are no problems.