Mayfly

Filtering reflective glare is essential for anyone on the water or outdoors. We sell only polarized sunglasses.

Your Costas absorb 100% of UV light, providing you the best in light management and protection.

The C-Wall coating provides extra scratch-resistance and a barrier that repels water, oil and sweat for easy cleaning.

Like its namesake, Mayfly is elegant, diverse and versatile. She exudes an oversized look and water-ready features for your complete enjoyment under the sun.The boldly femme, cat-eye design offers maximum light blockage and a wider field of view, and fully adjustable, textured and vented nose pads ensure a secure fit and helps keep lenses fog-free. With eyewire drains and channels, water and sweat will stay away from your eyes and keep you focused on the next adventure.Continuing our reputation for creating the best performance eyewear on the water, Mayfly is made to improve every experience.

Regular Fitting

A large lens front designed to fit those with an average-sized head.

8 Base Curve Decentered - Max Coverage

Frames with maximum-coverage and wrap that help reduce light leak.