Costa Del Mar Isabela Sunglasses deliver size and sophistication in a lightweight package, so you can see the sun, sand, and surf in style. The durable TR 90 nylon frame stands up to abuse and drops so you can take these sunglasses anywhere for anything. The stainless steel spring hinge holds the glasses securely on your head and also allows for easy on/off access. This pair of Costa Isabela's feature the 580P lens, made with lightweight plastic that is impact and scratch-resistant. The Copper lens tint cuts down on glare and enhances contrast and color, making it perfect for sight fishing, driving, and everyday activities. Each pair of Costas features 100% polarized lenses, providing complete UVA, UVB, and UVC protection, as well as a lifetime warranty against defects in materials and workmanship.