Incredibly light weight, resilient and durable. Weighs only 16 grams. Flat temples are free from pressure. Universal-fit nose bridge. Lenses are made from purity optical grade polycarbonate, finished with anti-scratch hard coating, and added anti-fog advantage. Absorbs 99% harmful UV light. Made of 100% polycarbonate. Meets or exceeds ANZI Z87.1 standard.