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Costa Del Mar Blackfin BL 69 OAP is an oversize Rx-able rectangular nylon sport wrap with polarized polycarbonate lenses. The Blackfin is designed with corrosion-resistant stainless steel hinges, adjustable wire core temples and special materials on the saddle nose bridge and temples to ensure comfort and minimize slippage. The Costa Del Mar orange logo is engraved on the temples. These Costa Del Mar Sunglasses have lightweight polarized polycarbonate lenses that provide amazing clarity and 100% UV protection.
Costa Del Mar Blackfin Realtree Polarized Sunglasses reduces eye-strain and cuts through water glare so you won't miss bedding bass or redfish prowling below oyster bars. The 580P lenses are highly impact and scratch-resistant.
Amber lenses enhance vision by blocking the somewhat hazy, blue end of the color spectrum, which results in greater contrast and improved depth perception. Wearers report crisper vision and increased ability to discern shapes, too, especially against green and blue backgrounds. They aid in discerning fish and underwater structures while sight-fishing in relatively shallow water. This is a good choice if you're going to be out in low-light conditions or on a day with changing weather patterns.