With a bold butterfly shape, the Fiona is confident, fun up front and sinewy with curves in all the right places. Comes with the SPY Happy Lens, the only color and contrast enhancing lens technology that maximizes the transmission of the sun’s “good” rayswhile still blocking out its “bad” rayswhich studies suggest fosters an uplift in mood and alertness. Crafted from virtually indestructible Grilamid 3-barrel hinges 6-base polycarbonate ARC lenses 100% UV protection FRAME MEASURES: 61-13-130