hi all! new to the forum for a quick question...figured you all are the experts and might know the answer! my boyfriend is in the army, and i am planning on getting him some new oakleys as a gift since he has misplaced his. i'm not sure if the army has any specific requirements regarding oakleys? i was looking at the half jacket xlj, but can't decide between jet black vs. matte black frames or black iridium polarized vs. grey polarized. any opinion will be appreciated. thanks!