Costa Del Mar May Sunglasses
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Costa May Polarized Sunglasses
Named for the historic New Jersey shoreline where the Delaware River meets the Atlantic Ocean, the Costa May brings the refined character of that destination coastal town to a large square lens frame built for serious sun protection. Intelligent styling, superior optics, and acetate construction make this one of Costa Del Mar's most distinctive women's frames.
580G Glass Lens Technology
Every Costa May ships with Costa's 580G lens, the highest tier in the Costa lineup. The "580" designation refers to the lens's ability to block High Energy Visible (HEV) light at 580 nanometers, the part of the spectrum most responsible for glare and eye fatigue on open water and bright sand. The "G" denotes optical-quality glass, which delivers greater scratch resistance, superior color fidelity, and crisper edge-to-edge clarity than polycarbonate alternatives. The result is a lens that makes the water read better and keeps your eyes relaxed on long days outside.
All 580G lenses are polarized to eliminate reflected glare from flat surfaces. Costa's polarization is co-molded into the glass rather than applied as a film, so it will not peel or degrade over time.
Acetate Frame Construction
The May frame is built from premium acetate, a plant-derived cellulose material that offers richer patterning depth and a warmer, more refined feel on the face than injected plastic. Acetate holds its shape well under heat, resists brittleness, and polishes to a high luster finish. The regular fit geometry suits a broad range of face shapes and sits with comfortable, secure weight distribution across the nose and temples.
The large square silhouette draws on the elegant Victorian architecture of its namesake coastal town, translating an East Coast American aesthetic into a frame that moves naturally from the beach to an afternoon in town.
Women's Fit and Coverage
The May is purpose-designed as a women's frame. The regular fit strikes the balance between maximum coverage and a proportioned look that does not overwhelm. Large lenses provide broad UV protection across the eye and the skin around it, an important consideration for time spent on the water or under open sky. The frame geometry minimizes light intrusion from the sides without requiring wrap curvature, preserving the refined square silhouette.
Care Instructions
- Always rinse with fresh water before wiping or cleaning with a microfiber cloth to remove salt, sand, or grit that could scratch the lens.
- Store in the included Costa hard case when not in use.
- Avoid leaving sunglasses in a hot car or other excessively hot or cold environment, which can warp the acetate frame over time.
- If the frame loses its fit, take it to a local eyewear professional for adjustment rather than bending it yourself.
What's Included
- Costa May 580G polarized sunglasses
- Costa protective hard case
- Microfiber cleaning cloth
Shop Costa Del Mar at Island Water Sports
Island Water Sports has carried Costa Del Mar sunglasses for decades. Find the full Costa lineup in store and online, with knowledgeable staff on hand to help you choose the right frame and lens combination for your on-water or everyday needs across South Florida and beyond.
Free Shipping, No Minimum for IWS Beach Club Members.
Returns are eligible within 30 days of receiving your order. Return shipping labels are FREE for IWS Beach Club Members. See more
Specifications
- Brand
- Costa Del Mar
- Model
- May
- Lens Technology
- 580G (optical-quality glass, polarized)
- Frame Material
- Acetate
- Frame Style
- Large square
- Fit
- Regular fit
- Gender
- Women's
- Polarized
- Yes
- UV Protection
- 580nm HEV light blocking + full UV400
- MPN
- itemMatrix-8053
Frequently Asked Questions
- Are the Costa May sunglasses polarized?
- Yes. Every Costa May comes with 580G polarized glass lenses. Costa co-molds the polarization into the glass, so it will not peel or degrade the way film-applied polarization can.
- What does 580G mean on Costa sunglasses?
- 580 refers to the lens's ability to block High Energy Visible (HEV) light at the 580 nanometer wavelength, the range most responsible for glare and eye fatigue in bright outdoor conditions. The G stands for glass, Costa's premium lens material, which offers superior scratch resistance and optical clarity compared to polycarbonate.
- Is the Costa May a good sunglasses for women?
- The May is purpose-designed as a women's frame with a regular fit and large square lens geometry that balances coverage and proportion. It suits a wide range of face shapes and works well for outdoor activities, beach days, and everyday wear.
- How do I clean and care for the Costa May sunglasses?
- Rinse the lenses with fresh water before wiping to remove any abrasive particles, then clean with the included microfiber cloth. Store the frame in the provided Costa hard case and keep it out of excessively hot or cold environments to prevent warping of the acetate frame.
- What is included with the Costa May sunglasses?
- The Costa May comes with a Costa protective hard case and a microfiber cleaning cloth.
- Where can I buy Costa May sunglasses near me?
- Island Water Sports carries the Costa May and the full Costa Del Mar lineup both in store across South Florida and online. Visit in store for a hands-on fitting or order online for shipping or curbside pickup.
- How does the Costa May compare to other Costa women's sunglasses?
- The May stands out for its large square acetate construction and regular fit, inspired by the classic Victorian coastal aesthetic of its namesake destination. Compared to Costa's sport-oriented frames, the May leans more refined and versatile, pairing well with casual and dressy looks while still delivering the same 580G polarized glass optics found across the Costa lineup.