Really wish this hat would have worked.  First issue it has that white hard shaped form on the inside of the front of the hat.  This makes the hat not form to your head and kind of dome up.  I should have returned it but tried to cut the white stuff out, which kind of worked but some of the pieces poke my head.  The last issue, the notch doesn't line up with Oakley Flak jackets.  Everyone's heads are different and it works for some, so good luck.