The Costa Del Mar Performance Brine II Sunglasses deliver a modernized evolution of a time-tested marine framework built for hardcore water explorers and dedicated anglers. This specific configuration pairs a durable Matte Tortoise frame with elite Blue Mirror 580G polarized glass lenses engineered to maximize tracking contrast in full-sun environments. Powered by Costa's multi-patented 580G Lightwave glass engineering, these scratch-resistant lenses filter out harsh yellow light spectrums and block blistering open-water glare to significantly minimize optical fatigue. The sleek, full-rim rectangle architecture features an 8-base wrap designed to tightly block peripheral light leak from altering your focus. Double-injected Hydrolite rubber padding along the nose and temple tips responds to moisture by gripping tighter to guarantee your frames stay anchored through high winds, sweat, and ocean spray. Costa Del Mar Brine II Men's Matte Tortoise Frame Blue Mirror 580G Lens Sunglasses 06S9134-91341559