Costa C-Mono Retainer
The Costa C-Mono Retainer provides a sleek, minimal way to keep sunglasses secure without adding noticeable weight or bulk. Constructed from high-tenacity monofilament, its ultra-lightweight design offers a clean, low-profile fit that works well for fishing, boating, travel, and everyday wear.
Flat, low-profile temple attachments connect securely to compatible eyewear while maintaining the retainer’s streamlined feel around the head and neck. Measuring 20 inches from end to end, the C-Mono Retainer keeps sunglasses conveniently within reach while maintaining a simple, unobtrusive profile.