The ONOS Ocracoke frame style features high quality TR-90 Grilamid frame construction in a tortoise color with a slight wrap around style. Rubberized nose pads and arm stems provide a great fit. The Ocracoke is lightweight providing a comfortable fit for the active outdoor enthusiast. Lens construction is ophthalmic quality polarized lens. Each Lens incorporates a Polarized filter which absorbs the horizontal light thus eliminating reflective glare which increases visual acuity giving you sharp, crisp, glare-free vision with increased contrast and depth perception.