From feminine and flirtatious frames to the ultimate in ladylike glamour and sophistication, each pair of the season's sunglasses and optical glasses delivers the designer's signature blend of classic and contemporary styling. Take these chic square specs, for example. Crafted from a lightweight mix of acetate and metal in a slick rectangular shape, this elegant pair elevates the everyday accessory to seductive status with a ‘Double J' plaque on the temples and a matching motif engraved at the tips. Finished with Marc Jacobs' logo printed on each arm for an unmistakable touch, let yours bring a sense of effortless chic to even the most casual of outfits.