Walleva Polarized Hat Clipped Sports Sunglasses For Fishing/Biking/Hiking/Golf/Ski - Multiple Options Available 100% Polarized (Reduces Glare and Enhances Contrast) 100% UV Protection (Exceeds ANSI Z80.3 and EN 1836:2005 Standards) Armless Design (Clipped On The Hat Brim, Hat NOT Included), Easy Flip Up And Down (For Easy Switch Between Sun And Shadow) Light Transmission: 16% (Most Comfortable In Summer Sunlight And White Snow) Water Resistant, Dust Resistant,Impact Resistant - Passed FDA Drop Ball Test