About the RB3721CH: The Ray-Ban RB3721CH Sports Sunglasses, showcase a modern square silhouette with advanced technology for enhanced clarity and color vibrancy. Made with high-quality, lightweight materials and iconic design elements, these unisex sunglasses feature rubber temple tips for improved grip and a durable high-precision hinge, ensuring comfort for running, cycling, outdoor activities and everyday wear. Color code: 9144A1. Ray-Ban Lens Qualities: The Mirror Polarized Chromance Polycarbonate lenses combine anti-glare polarization with advanced contrast enhancement technology. They effectively reduce glare and reflections while enhancing clarity and color vibrancy. These durable lenses provide 100% UV protection and a stylish, modern look, making them ideal for outdoor activities, and everyday use. RB3721CH Frame Fit: Regular fit with adjustable nose pads ensures a comfortable, customized fit for medium to large face shapes. The lightweight metal frame guarantees long-lasting comfort, while rubber temple tips enhance grip, and the high-precision hinge adds durability, all complemented by a modern square silhouette for a fashionable look. Accessories Included: Enhance your Ray-Ban experience with a complete accessories package including a Ray-Ban-branded protective case and a microfiber cleaning cloth to keep your sunglasses in pristine condition. Additionally, our exclusive bundle includes a premium lens cleaning kit, screwdriver keychain, mirror and a stylish sunglasses pouch for extra protection and convenience. Ray-Ban Quality Assurance: Rest easy knowing your Ray-Ban sunglasses and accessories are crafted with precision and protected against manufacturing defects—ensuring lasting quality and confidence in every wear. These chromance are a new generation of sunglasses. The square metal frame has been designed to withstand the test of time, while maintaining an innovative and unique style.