Fit and Design: Standard fit sunglasses Lightweight O Matter(TM) frame material with Square O metal icon and front rivet accents Frame design inspired by the screen heroes from the 1940s, 50s, and 60s to epitomize the spirit of exploration and adventure Technology: 6 base lens geometry with HDO(R) optics provides crystal clear vision and impact resistance Prizm(TM) lenses available to enhance color, contrast and detail for an optimized experience California Proposition 65