Chesterfield offers a classic horn-rim for the fashion-conscious man in these CH49/XL eyeglasses. Made in acetate, a plant-based plastic, the rectangular frames are hypoallergenic, lightweight, and sturdy enough to endure heavy wear. The temples curve inward gently and widen at the tips for stability. The flexible spring hinges retain their initial balance for a comfortable, secure fit. The saddle bridge distributes the weight of the frames evenly and adds to the retro look of these CH49/XL glasses from Chesterfield.