Smith Optics Women's Rebel Designer Sunglasses/Eyewear, Black/Sienna Gradient, Medium Composite frame Carbonic lens non-polarized Lens width: 57 millimeters Bridge: 17 millimeters Arm: 140 millimeters Carbonic TLT lenses Cellulose propionate frame material Adjustable wire-core temple Barrel hinges 6 base lens curvature