These co-molded frames are a bit smaller, but definitely akin to the classic styling of Costa's classic Blackfin frames. Adventure-ready? You bet! Costa Del Mar Fantail Sunglasses feature nylon frames, integral hinges, and an 8 base curve.
Every pair of Costas features 100% polarized lenses, providing complete UVA, UVB, and UVC protection. Lifetime warranty against defects in materials and workmanship, and these Costa Fantail Sunglasses are prescription ready. Featuring Costa 400 Lens, which are designed for adventure and built to perform with superior clarity, contrast, and definition, these sunglasses are perfect for those who spend time on the water, in the field, or any number of different environments where clarity is necessary. These extremely durable 400G Lenses are made of LightWAVE glass that's 20% thinner and 22% lighter. A Green Mirror lens tint offers advanced visual acuity, which is perfect for fishing inshore, flats, rivers, and streams, and many other activities. These lenses allow a minimal 10% light transmission.