Developed with the casual runner in mind, Oakley's Actuator features a universal round shape with larger sized lenses for optimal coverage. Adjustable wire core temples and O Matter frame material help provide comfort and durability needed for wherever your runtakes you. With Unobtainium nosepads, featuring an anti-bobbing bridge design, for a no-slip grip, Actuator is kept in place no matter the activity level. Features: DESIGN: Dual, round lens designFRAME MATERIAL: Durable, lightweight O Matter frame materialUnobtainium® sport ligature nosepad designed to reduce bobbing bouncing with no-slip gripNO-SLIP GRIP: Unobtainium earsocks provide no-slip grip when wet to help increase retentionSEE MORE DETAIL: Prizm Lens Technology engineered to enhance color and contrast to see more detailPRESCRIPTION READY - Available with Oakley Authentic Prescription lenses that come laser etched with the ellipse logo on left wearing lens for proof of Oakley authenticity and quality Oakley SI Actuator Matte Black w/PRIZM Black Lenses OO9250-1257