Silhouette 7790 prescription eyeglasses are for men speaks of dignity, command and sophistication. Silhouette is the leading brand in light eye-wear worldwide. Under this brand, the lightest eyewear in the world is mostly handcrafted in an individual design, employing the best materials and the latest technologies. These rectangular shaped frames are finely crafted from titanium with a unique temple design. This is a semi rimless frame. This particular color is called Black Shadows. The size available is 50-19-140 B29 (eye size-bridge width-temple length-lens height in millimeters). These eyeglasses are not recommended for progressive lens and comes with a 2-year manufacturer's warranty.