Costa Del Mar sunglasses are proudly crafted in Florida, where the polarized lenses are made from premium materials like glass, polycarbonate, or CR-39. These lenses are fully polarized and provide complete protection against UVA, UVB, and UVC rays. While most of the sunglass frames are assembled within the United States, they also incorporate components from around the globe, including Japan, Italy, France, Mauritius, China, and Taiwan.