Costa Del Mar Isabela Sunglasses
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Costa Isabela Polarized Sunglasses for Women
The Costa Del Mar Isabela is built for women who spend real time on and near the water. A narrow-fit frame keeps things close to the face for a secure, drift-free feel whether you are paddling out, boating, or walking the waterfront. Costa's reputation is built on optical clarity that holds up under the harshest coastal glare, and the Isabela delivers exactly that through its 580P polycarbonate lens system.
Costa 580P Lens Technology
The 580 designation is not marketing shorthand. Costa's 580 lenses cut the three wavelengths of light (380nm, 455nm, and 540nm) that cause the most eye strain and glare on water, while transmitting the wavelengths that sharpen contrast and color definition. The result is a noticeably more vivid, less fatiguing view of the water around you. The P in 580P stands for polycarbonate, a lightweight, impact-resistant material that keeps the Isabela comfortable over long days. All 580P lenses are polarized, blocking reflected horizontal glare from water and wet surfaces at the source.
Frame Construction and Fit
The Isabela frame is classified as a narrow fit in Costa's fit guide, which runs from Narrow to Regular to Wide. Fit combines frame size and frame features together, including hinge construction and temple arm geometry. At 127mm wide with a 63.2mm lens width and 39.5mm lens height, the Isabela proportions suit smaller or narrower face shapes. The 124mm temple arm length seats the frame comfortably at the ear without over-extending. The tortoise acetate frame is lightweight yet rigid, holding its shape through sun, salt, and repeated use.
Why Costa
Costa Del Mar is an American polarized sunglass maker whose product is engineered specifically for life on and around water. Every frame is designed to perform in coastal environments where UV reflection off the water is intense and consistent. The Isabela is no exception: it earns its place as a daily driver for fishing, beach days, paddling, and any activity where crisp, protected vision matters.
At Island Water Sports
Island Water Sports has carried Costa Del Mar for decades. The Isabela is available in store and online at Island Water Sports, South Florida's home for water-focused gear and apparel. Our staff wears and uses the products we sell.
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Specifications
- Brand
- Costa Del Mar
- Model
- Isabela
- Item No.
- IB 10 OCP
- Lens Technology
- Costa 580P
- Lens Material
- Polycarbonate
- Polarized
- Yes
- Frame Fit
- Narrow
- Frame Width
- 127mm
- Lens Width
- 63.2mm
- Lens Height
- 39.5mm
- Temple Arm Length
- 124mm
- Gender
- Women
Frequently Asked Questions
- Are the Costa Isabela sunglasses polarized?
- Yes. All Costa 580P lenses are fully polarized. They block reflected horizontal glare from water and wet surfaces, which is the dominant source of eye strain in coastal and on-water environments.
- What does 580P mean on Costa sunglasses?
- 580P refers to Costa's proprietary polycarbonate lens technology. The 580 designation means the lens filters three specific wavelengths of light that cause the most glare and eye fatigue, while enhancing contrast and color clarity. The P stands for polycarbonate, a lightweight and impact-resistant lens material.
- What face shape does the Costa Isabela fit best?
- The Isabela uses a narrow frame fit (127mm wide, 63.2mm lens width) in Costa's Narrow-Regular-Wide fit guide. It suits smaller or narrower face shapes. Costa's fit is influenced by frame size and construction features together, including hinges and temple design.
- Can you customize Costa sunglasses?
- Costa does offer lens replacement and frame customization programs directly. For the Isabela specifically, replacement 580P polycarbonate lenses are available through Costa's service program. Contact Island Water Sports or visit Costa's website for details on customization options.
- What is the difference between Costa 580P and 580G lenses?
- Both share Costa's 580 optical filtering technology. The P variant uses polycarbonate, which is lighter and more impact-resistant, making it a strong choice for active use. The G variant uses glass, which offers a slightly higher scratch resistance and optical clarity. The Isabela is offered in 580P polycarbonate.
- Are Costa Isabela sunglasses good for fishing and water sports?
- Yes. The 580P polarized lenses cut surface glare and sharpen underwater contrast, which is directly useful for fishing and paddle sports. The narrow fit keeps the frame close to the face, reducing light bleed around the edges during active movement.
- How do I clean and care for my Costa Isabela sunglasses?
- Rinse the frame and lenses with fresh water after salt water exposure. Use a clean microfiber cloth to wipe the lenses. Avoid paper products, clothing fabric, and household cleaners, which can scratch polycarbonate lenses. Store the sunglasses in a hard case when not in use.