Looking for the perfect accessory to complement your Costa sunglasses? Look no further than the Costa C-Mono Retainer. Crafted with precision and designed for the modern adventurer, this sleek and ultra-lightweight retainer offers the perfect blend of functionality and style. Key Features: High-Tenacity Monofilament: Constructed with high-tenacity monofilament, the Costa C-Mono Retainer ensures durability and reliability, keeping your sunglasses secure in even the most demanding conditions. Sleek Design: With its streamlined design, the C-Mono Retainer seamlessly integrates with your Costa sunglasses, enhancing their overall aesthetics without compromising on performance. Ultra-lightweight: Experience unparalleled comfort with the ultra-lightweight construction of the C-Mono Retainer. You'll hardly notice it's there, allowing you to focus on your adventures without any distractions. Flat, Low-Profile Temple Attachments: The flat, low-profile temple attachments of the C-Mono Retainer ensure a secure fit without adding unnecessary bulk. Say goodbye to discomfort and hello to hassle-free wear. End-to-End Measurement: 20": Designed for convenience, the C-Mono Retainer comes with an end-to-end measurement of 20 inches, offering ample length for a customized fit that suits your preferences. Whether you're hitting the trails, setting sail, or simply soaking up the sun, the Costa C-Mono Retainer is the perfect companion for keeping your shades secure wherever your adventures take you.