I live in the city, I am outside a lot walkng from place to place, so I like to keep plenty of sunglasses handy. Since I have been in the way of my dad's style circa 1980's (think boating shoes, Roy Orbison glasses, short shorts) and being green as of late, these were obvious. Not only are they eco-friendly, but are also hypoallergenic! They aren't exactly cheap, but you can't put a price on environmentally friendly badassness! They are available at one of my favorite lil' shops in Williamsburg, YLLI.