Guess by Marciano | Accessories | Marciano By Guess 。The Guess by Marciano GM 729 is a perfect choice of Sunglasses from the wonderful Guess by Marciano collection. These exciting Sunglasses have a compelling arrangement of superb features. This eyewear is eligible for prescription lens installation. The width of the bridge of this frame is 17 millimeters. The eyesize of this item is 57 millimeters. Usually paired with polarized lenses, mirror coatings come in a variety of colors. Their highly reflective properties reflect heat, glare, and can enhance visual comfort. It is fully rimmed along the edges to give a sense of completeness, lens security, toleration and absolute style. Black color is subtle, versatile and matches almost any outfit.