Every now and then, a girl likes to shake up her downtown look with a little dose of uptown polish. But thankfully, that doesn't mean paying Madison Ave. prices for it. In lieu of dropping lots of dough, we suggest adding a pair of perennially stylish tortoise shell sunglasses with an equally pretty price-tag. Courtesy of Fred Flare, these shades add a stroke of timeless hotness to the simplest frock or pair of tattered denim cut-offs. Understated, slightly preppy, and all-around chic, these sunnies could easily be on the pricey side—just check out how Dries Van Noten does tortoise. But priced at a $11, our shady picks are a summer must-that won't put you in the poor-house.