Pfanner Nexus safety glasses feature clear lenses for all-day use, delivering a precise fit without discomfort. Designed by tree climbers for tree climbers. Robust one-piece construction eliminates loose or detachable parts. Superior fit ensures no pressure behind the ears when paired with ear muffs, due to the Quattroflex earpiece and soft contact points at the nose, forehead, and ears. Highly scratch-resistant and exceptionally chemical-resistant. Pfanner Nexus safety glasses provide complete ultraviolet protection. Soft bags and hard cases are available for storing your glasses. Meets CSA Z94.3:2007 and ANSI Z87.1:2003 standards.