Gill Glare Free Sailing Sunglasses | 2021 | Matt Tortoise Shell Slightly different from the other ranges this one has a sandwich lens constriction which contains a polarizing light filter in the center meaning it will provide you with superior protection from the elements and that they are the best guards for your eyes! It will provide you with a glare free and UV protective day on the water making these glasses your number one essential sailing accessory. They have been designed with polarized lens technology making it easier and more enjoyable on the water. The hydrophobic outer coating sheds water and reduces salt residue for clearer vision, making the stress of dirty lenses and damage from salt reduced. Forget finger prints, sun lotion and skin oils impacting the lens as an Oleophobic technology applied to the inside face repels these critters. Lastly no need to stress about losing these bad boys to the bottom of the ocean as they are designed to float! Features Hydrophobic outer coating Oleophobic technology  Grade 1 Optic lenses designed to exceed EN safety standards Glare-free vision 100% UV 400 protection Polarized lens technology Reduced eye fatigue Integral floatation Filter category 3 lenses allowing 8-18% light transmission.