Features & Technologies HALF JACKET 2.0 XL PRODUCT OVERVIEW: If you're trying to keep up with the competition, you need to keep up with changing light. Oakley engineered Half Jacket 2.0 to let you swap out the lenses with ease MORE FEATURES: 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™ TECHNOLOGIES INCLUDED Oakley's patented High Definition Optics (HDO) eliminates di