Features:- Holbrook is a timeless, classic design fused with modern Oakley technology. Inspired by the screen heroes from the 1940s, 50s, and 60s, this design epitomizes the spirit of exploration and adventure. The iconic American frame design is accented by metal rivets and Oakley icons, perfect for those who seek equal parts performance and style.- Lightweight O Matter™ frame material with Square O metal icon and front rivet accents.- 6 base lens geometry with HDO.