Take in the sun with the Costa Del Mar Cut Sunglasses. The TR 90 nylon frame is durable and stylish, allowing you to embark on any sort of adventure without worrying if your sunglasses will hold up. A stainless steel integral hinge allows for easy on/off access, while the comfortable large fit will make you forget you even have the Cut sunglasses on. This pair of Costa Cut sunglasses features the Costa 400 lens, which is designed for adventure and built to perform with superior clarity, contrast, and definition. These durable 400G lenses are made of LightWAVE glass that's 20% thinner and 22% lighter then the average glass lens. The Blue Mirror tint is made for the open water, and Delivers maximum contrast and color in full sun while eliminating glare. This lens coloration allows a minimal 10% light transmission. Every 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.