The Oakley Holbrook R takes similar design cues from the classick Holbrook but has rounded out the bottom of the lenses for a new look. This frame also adds Unobtanium to the nosepads and temple arms for a comfortable and secure fit. The lightweight O-matter frame material makes these a pair of glasses that you can wear for extended periods of time without noticing any pressure points on your face.The rounded lens shape of the Holbrook R is available in prescription too! This frame is is ideal for small to medium faces. If you have any further questions about the Holbrook R, you can reach a certified optician at SportRx 7 days a week!