Whether you're in LA or St. Tropez, a stylish pair of shades is the most important summer purchase for fashionistas the world over. From the classic shapes of Ray Ban to the fashion-forward frames of Oliver Goldsmith, sunglasses are a powerful accessory that can instantly update your look or reference an icon of cool – Jackie O., Steve McQueen and Peggy Guggenheim all understood the allure of a good pair of shades. For maximum fashion points, choose strong silhouettes, iconic styles or interesting shapes. Just try not to lose them. LuxuryCulture presents the top 10 sunglasses of the season.