Will the XLJ lenses fit on a standard Flak Jacket frame? I've got the standard sunglasses, but I want to get more coverage and would like to put the XLJ lenses without having to buy a new frame.

To the best of my knowledge, yes...they will. I was talking with an Oakley rep the other day and he told me that they would fit. I have the XLJ's and they are awesome. Only bad thing is the fact that the Transitions lenses aren't sold seperately yet. Go on Oakley.com and search for a customer service number, they are really cool and will be able to give you a definite answer.
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