Say goodbye to heavy sunglasses that weigh down your head after a long day on the water-the ultralight Costa Del Mar Ballast Polarized Sunglasses feature shatterproof polycarbonate lenses in a sleek, rimless design. Whether you sail, fish, ski, or just live to get outside, the Costa 400 polarized lenses eliminate glare and increase surface detail-a crucial asset whether you're spotting bonefish in the flats or zipperlining Bubblecuffer's icy bumps. The Ballasts are perfect for getting after it, but if you think these Costa Del Mar shades are sport-specific, take them for a spin around the beach bar or on the lodge deck, and catch the admiring glances they receive.