Size: M (130mm) If you’re trying to keep up with the competition, you need to keep up with changing light. We engineered Half Jacket 2.0 to let you swap out the lenses with ease. • Lightweight O Matter™ frame material with ellipse metal icon accents • Unobtainium™ earsocks and nosepads for increased comfort and performance • 8.75 base lens geometry with HDO™ • Polarized, Iridium™ and Photochromic options available • Interchangeable lens system • Available with Oakley Authentic Prescription Lenses • Transitions and the swirl are registered trademarks and SOLFX and XTRActive are trademarks of Transitions Optical, Inc.