Product Info SIZE: M (132MM) Thurso pairs lightweight style with sophisticated edge and self-expression in a sunglass primed for everyday life and transitioning into sport. The mixed material O-Matter™ and C-5 frame is comfortable and durable, while the no-slip grip Unobtainium® nosepads and earsocks keep it secure during any activity. Designed to fit seamlessly with a hat, Thurso features a subtle deco-line design to give you a look all your own. To see more detail, Prizm™ Lens Technology enhances color and contrast for wherever your path leads you. ? 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 O Matter® frame front and ultra-lightweight, C-5 metal temples provide durability and all-day comfort ? FITS WITH HATS - Temple has been designed with a slight hook for a seamless hat fit ? O-Matter™ temples have been designed to be low profile to fit with hats and helmets. ? NO-SLIP GRIP - Integrated Unobtainium® earsocks and nosepads help provide retention with a no-slip grip and all-day 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: M (132mm) 1Lens Height 44.9 mm 2Frame Width 132.1 mm 3Arm Length 145 mm 4Lens Width 54 mm 5Bridge Width 19 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. Low Bridge Fit: Offers a more secure and comfortable fit for those with a low nose bridge and higher cheekbones. A good choice if eyewear tends to slide down your nose, sit too low, or press on your temples or cheeks.