BluBlocker™ high resolution lenses give you a truly unique ownership experience.  They block 100% of UV light and 100% of blue light.  As a result, you will not squint on a sunny day at the beach, on a hike, or while driving.  The classic Demi-Tortoise aviator BluBlocker sunglasses have a legend all their own. Since their first appearance in 1993, and their claim to fame in The Hangover, worn by both Alan (Zach Galifianakis) and Carlos (the baby) in 2009.   Measurements: Lens Width 67mm, Bridge Width 16mm, Temple Length 152mm Drawstring case included. Item# 2725K Also available in Black (2701K) ,  White (2699K) and Polarized.