Exceptional style meets astonishing strength in the VonZipper Alysium Sunglasses. The all-new Alysium is hand-crafted with flexible nylon grilamid frames and impact-resistant polycarbonate lenses for all-day comfort and durability. This sport-meets-lifestyle hybrid features a street-worthy aesthetic with an undertone of tech, which includes RGNS rubber nosepads, corrosion-free Pop ‘N Lock cam hinges, and a face-hugging 8-base spherical lens.