The mixed material BiO-Matter™• and C-5 frame material displays sophistication while Unobtainium® nosepads provide no-slip grip. Designed for comfortability with three-point fit and soft touch earsocks, Sielo keeps up with your active lifestyle from a day on the town to hikes on the trails and beyond. For enhanced color and contrast everywhere you go, Prizm™ Lens Technology provides the details.