Product Info SIZE: L (136MM) See life in Sielo, inspired by the heavens and sunglass gods above. The mixed material BiO-Matter™? and C-5 frame material displays sophistication while Unobtainium® nosepads provide no-slip grip. Designed for comfortability with three-point fit and soft touch earsocks, Sielo keeps up with your active lifestyle from a day on the town to hikes on the trails and beyond. For enhanced color and contrast everywhere you go, Prizm™ Lens Technology provides the details. ? WHEREVER YOU GO = The mixed material frame and seamlessly integrated performance features help cross this style from activities to daily life ? LIGHTWEIGHT AND DURABLE - The BiO-Matter™ frame front and ultra-lightweight, C-5 metal temples provide durability and all-day comfort. BiO=-Matter is made from bio-materials having at least 56% bio-based carbon content (representing ratio of castor oil to fossil sources) ? NO-SLIP GRIP - The Unobtainium® nosepads help provide retention with a no-slip grip and all-day comfort. Propionate temple tips provide additional retention and comfort ? SEE MORE DETAILS - Available with Prizm™ lenses that are designed to enhance color, contrast so you can see more detail IMPACT PROTECTION Oakley lenses are designed and tested under extreme high mass and high velocity circumstances to ensure uncompromising protection across a wide range of demanding conditions. SIZE & FIT Our Sizing Frames are measured in millimeters. We’ve included this information for each of our frames to help you estimate how they’ll fit your face. FRAME & LENSES Size: L (136mm) 1Lens Height 48.8 mm 2Frame Width 136 mm 3Arm Length 143 mm 4Lens Width 57 mm 5Bridge Width 17 mm Measurements listed intended for customer use only. Not intended to be used by opticians to fill prescriptions. Fit Options Regular: A medium lens front designed for those who prefer to cover an average portion of the face. Universal Fit: This option accommodates most face shapes.