Carrera Opt + Clip-On Optical Frame combines a lightweight polyamide build with attachable polarized clip-on lenses for versatile everyday wear and reliable sun protection. Key attributes: Blue | Polyamide | Polarized lenses | UV protection 100 | Lightweight | Clip-on convertible sun lenses | RX compatible | Rectangular frame | Full rim | Temples with ultem opening | Dimensions & fit: Lens width 56 mm | Bridge 16 mm | Temple length 140 mm | Composition & care: Polyamide (frame) | Ultem (temples) | CR-39 (lenses)