Mainsail XL

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The Costa Mainsail XL expands on a fan favorite, offering a broader fit while maintaining the same performance-driven design. Built with micro side shields and subtle hooding to bl ock excess light, this frame delivers enhanced coverage and protection from the elements. Vented nose pads improve airflow and reduce fogging, while retainer-ready temple tips keep your shades secure during any water pursuit. Mainsail XL is the go-to for anyone who demands functionality, versatility, and coastal style. Show more