The Marc Jacobs sunglasses in black feature a unisex design with a lens width of 53 mm, suitable for adult wearers. Constructed from durable nylon-polyamide material, these sunglasses provide reliable eye protection and lasting performance. The classic black color ensures versatile style compatibility with various outfits and occasions. Marc Jacobs maintains consistent quality standards in its eyewear collection, focusing on precise manufacturing and material selection. The frame design balances comfort and stability during extended wear, while the lens dimensions offer adequate coverage for most face shapes. These sunglasses serve as a practical accessory for daily use, providing essential UV protection and complementing personal style. The unisex size accommodates different preferences without compromising fit or functionality. The chosen materials prioritize durability and resilience against everyday wear conditions to maintain the product's appearance over time. Marc Jacobs eyewear adheres to established design principles that emphasize both aesthetic appeal and practical performance. The 53 mm measurement refers to the horizontal lens width, which determines the overall fit and coverage area. These sunglasses represent the brand's approach to accessible luxury accessories, combining recognizable design elements with functional requirements. The product meets contemporary eyewear standards while preserving the distinctive features associated with the Marc Jacobs brand identity.