A rimless light weight and extremely durable frame of metal alloy with a memory titanium temples with 180 degree full-swing spring hinges. This frame retains its shape well. This frame is shown with lens shape #223. Please refer to the lens shape button above to see the 37 different lens shapes and sizes available with this frame. These different lens shape and size choices can significantly alter the overall look and final size of this frame. | Zenni Women's Lightweight Rimless Prescription Glasses Silver Memory Titanium Frame