Free Shipping & Easy Returns! Explore Costa Rinconcito Sunglasses now. The Costa Rinconcito sunglasses offer a bold, sporty aesthetic. The rectangular frames are made from eco-friendly plastic, you can feel good about wearing these shades knowing that they’re as environmentally friendly as they are stylish. The robust lenses provide protection against glare and wind so you can enjoy an unobstructed view of your surroundings. For eye-catching style when you're on the go, opt for these cool Costa sunglasses. About Costa Eyewear Costa eyewear is made for those with an active lifestyle, bringing a healthy dose of fashion to the beach or trailhead. Polarized sunglasses, eyeglasses, and C-Mates bifocal readers by Costa will help you navigate in any direction your adventure leads. Created by fisherman for fisherman in the late 1980s, Costa continues to create quality sunglasses and eyeglasses with innovative technologies. These performance glasses were "born on the water," and they’re made to last—each pair is a worthy investment. 100% Authentic Costa FramesDirect.com is an authorized Costa dealer, selling only 100% authentic Costa 580 polarized lenses with its sunglasses, prescription sunglasses, and readers frames. Costa brings you the best of both worlds—innovative lens technology paired with authentic Costa frames for any outdoor adventure. Additional Information: Costa Lens Colors and Materials (PDF)