Channel bold vintage vibes wearing the Marc Jacobs Marc 342 eyeglasses. Crafted in acetate, a natural plant-based plastic, these full-rim rectangular frames are lightweight in spite of their strong silhouette. With flexible spring hinges and a slightly curved shape, the sleek skull temples rest snug along the sides of the head for a secure, comfortable fit. Signature branding at the temple brow end adds subtle designer appeal to these undeniably masculine eyeglasses from Marc Jacobs.