flak jackets are my favorite out of my collection. they are one of the most popular frames, and just about everyone seems to have a pair. yet they get no love. the design isn't flashy or over the top, but at the end of the day, they are a good looking frame that you can wear all day long and still not know that they are there. and they go with just about anything. so lets see em! any custom designs? mine are just plain polished black/black iridium polarized. but if i had the cash, i would like to customize another pair to alternate.