Features - Holbrook MT Blk Prizm Grey -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. - Available with Prizm™ lenses to enhance color, contrast and detail for an optimized experience. - Impact Protection: Oakley lenses are designed and tested under extreme high mass and high velocity circumstances to ensure uncompromising protection across a wide range of demanding conditions.