Steve Downerwrote a review of Oakley Flak Jacket XLJ Sunglasses on November 12, 2013
Familiarity: I've put it through the wringer
These are my favorite sunglasses for any active use. They are super lightweight and they look awesome. I have them in black with the fire iridium lens and they're perfect for any type of sunny day. I generally use these when running on the road or trail as well as every hike I do. They hug my face and nose enough so that they don't slip at all. In fact, the more you sweat, they tend to "stick" to you even better.
I don't change the lenses on mine very often, but if you want to, it's easy enough to do. This opens up your options a lot and allows you to use these for really any situation. I have an average sized face, and these fit very well. I also love the XLJ lens as it's just a little bit bigger than the regular, offering that much more protection from the sun.