Shop Costa Del Mar Polarized Sunglasses, PIPER 58 online at Macys.com. Experience sunglasses for life's great adventures. Born on the water, Costa Del Mar sunglasses are designed for those who love the open water. Each pair is packed with patented technology that enhances colors and eliminates haze and blur. With a variety of materials and lens colors, Costa Del Mar sunglasses are designed for specific activities and varying light conditions.