Prizm™ lenses are designed to enhance color, contrast and detail High-wrap, semirimless frame is designed to increase field of view and improve ventilation O Matter™ lightweight frame material provides durability and all-day comfort Unobtainium™ nosepads increase grip to help keep the eyewear securely in place when you're sweating Included ridged-textured Unobtainium on the inside of the temples to help keep the glasses on