Marc Jacobs Sunglasses. Series number: MARC 446/S. Color code: KB7. Size: 56. Shape: Square. Lens Width: 56 mm. Lens Bridge: 16 mm. Arm Length: 145 mm. 100% UV protection. Non-Polarized. Frame Material: Acetate. Frame Color: Grey. Lenses Type: Grey. Rim Style: Full-Rim. UPC/EAN code: 716736202327. Marc Jacobs Grey Square Sunglasses MARC 446/S0KB7 56/16.