Costa Del Mar Ballast Men's Polarized Sunglasses, Tortoise / Green Mirror 580P — Frameless, Lightweight, 60 Size for Fishing and Boating

Lightweight, frameless Costa Del Mar Ballast sunglasses with 580 polarized lenses for clearer, glare-free vision on the water.

Designed for days spent fishing, boating or relaxing by the shore, the Ballast combines an almost-weightless TR-90 frame with Costa’s 580 polycarbonate polarized lenses. The tortoise frame with Green Mirror 580P lenses reduces surface glare and improves contrast so you can pick out details on water, sand and distant structure. Built to be durable yet comfortable, this pair weighs about 16 grams and ships with a protective case and microfiber cleaning cloth.

How do these sunglasses help when I’m out fishing or boating?

The 580 polarized lenses cut reflected glare and heighten visual contrast, helping you see beneath surface reflections and spot fish and structure more easily. The lenses are engineered for scratch- and impact-resistance while remaining lightweight for all-day wear.

• 580 polycarbonate lens material for clarity and durability
• Green Mirror finish to boost contrast in bright, reflective conditions
• Polarization to reduce surface glare on water
• Light weight and secure fit to stay comfortable during activity

What makes the Ballast frame suitable for active days?

The frameless, co-injected TR-90 nylon frame is engineered for flexibility and toughness—resistant to impact and able to hold up in saltwater environments. At roughly 16 grams, these sunglasses stay nearly weightless, minimizing pressure on the bridge and temples during prolonged use.

• TR-90 bio-based nylon construction for resilience and comfort
• Frameless design to reduce visual obstruction and weight
• Secure nosepad geometry to help keep lenses in place
• Included protective case and cleaning cloth for safe storage

Which visual conditions are best matched to the Green Mirror 580P lens?

The Green Mirror 580P lens is tuned to enhance contrast in bright, reflective settings—ideal for inshore flats, open-water glare, or sandy beaches. It balances color fidelity with increased definition so you can see variations in the water and shoreline without exaggerated color shifts.

• Enhanced contrast for spotting structure and movement
• Balanced color rendering for natural-looking surroundings
• Mirror coating to reduce incoming light in very bright conditions
• Polarization to manage horizontal glare on wet surfaces

What support and accessories come with the sunglasses?

Each pair ships with a hard protective case and a microfiber cleaning cloth to maintain lens clarity and protect the frames between outings. Costa backs its eyewear with limited warranties that cover defects in materials and workmanship—refer to Costa’s warranty details for specifics.

• Hard Costa case for secure transport and storage
• Microfiber cleaning cloth to remove smudges safely
• Limited warranty coverage for qualifying defects
• Replacement and repair options available through Costa customer service

Who is this for: The Costa Del Mar Ballast is aimed at anglers, boaters and outdoor enthusiasts who prioritize lightweight comfort and polarized clarity on the water. If you want a nearly weightless sunglass that emphasizes glare reduction, contrast and durability—while including practical storage and warranty support—these Ballast sunglasses in 60mm tortoise with Green Mirror 580P are a strong match.