Prada Linea Rossa's trademark red stripe logo and rubber temple tips are the standout feature of this optical style. The clean lines of the metal front with a top bar compliment perfectly the bolder temple design.Made to suit both sporting and leisure activities, Model No. PS 51PV UR71O1 - Blue rubber Prada Linea Rossa presents an optical style in nylon fiber, a lightweight yet super resistant material. But it's not all about performance, the design aesthetics are on point too with the unique red stripe logo both on the temples and tips.Wire rimmed Nylon fiber frame hides the lens thickness and is recommended for high plus and high minus lenses.The depth of the lens is suitable for regular corridor progressive lenses and office lenses. Soft rectangle lens shape fits all kinds of lens powers.Nylon Fibre Temple adjustment process: Heat for 20-30 seconds at the highest temperature. Adjust as needed. Hold in place until cooled. void heating nylon fiber frames during the mounting process. Rubber insert keeps the frame gripped.