Hit the open water wearing the Costa Del Mar(R) Tuna Alley 580P Polarized Sunglasses. The plastic lenses are lightweight, yet durable and the frame is made from heavy-duty TR 90 nylon. A patented ventilation system prevents foggy lenses and keeps you cool for a fun day fishing. Polarized lenses cut glare and reduce eye strain, so you can find the catch of the day with no problem while wearing the Tuna Alley Sunglasses. FEATURES: Patented ventilation system prevents fogging Plastic lenses are lightweight, impact- and scratch-resistant Polarized lenses cut glare and reduce eye strain Integral hinge 100% UV protection Heavy-duty TR 90 nylon frame Hard carrying case included Manufacturer's lifetime warranty California Proposition 65