On or off the water, the clean design and structured lines of Revo Converge Sunglasses live at the intersection of comfort and style. A streamlined silhouette is further enhanced with the inclusion of high-tech extras like Motion-Fit? design and flush-mount spring hingesurity.Revo high-contrast polarized Serilium? lenses. Motion-Fit? design stays put during high-speed activities. Spring hinge ensures greater range of motion and boosts frame durability. Authentic Revo prescription lens-ready. 8-base lens technology. Measurements: 61-16-120. Blue water lense perfect for cutting glare in bright conditions on the water. Terra lense actively filters the light spectrum to provide clear vision. Graphite lense enhances natural vibrant colors while blocking harmful rays and harsh glare. Blocks 100% UVA-B-C .