TONIC BLAQ METAL PHOTOCROMIC COPPER GLASSBlaq is the first metal frame from TONIC Eyewear. An instant classic, featuring adjustable nose pieces and templates, comfort and style are guaranteed. Frame: Satin Black Lens: Glass Copper Photochromic TONIC Glass Photochromic Lenses, Copper or Grey, darken and lighten depending on ambient light conditions. These lenses have been designed and developed to give the highest quality optics in all conditions. Team this with TONICs ARC (Anti Reflective