The Optic Nerve Rumble Sunglasses are a casual frame with advanced features, such as injection polarized lenses and hydro/oleophobic coating, dual injection non-slip rubber tips and bridge pads, and active frame geometry.Polarized lenses contain a special filter that absorbs the horizontal light that creates the effect of glare, which reduces eyestrain and improves clarity and comfortDual injection non-slip rubber tips and bridge pads, and active frame geometry allow the Rumble to stay in place even on your hardest treks100% UVA/UVB ProtectionUnisex design fits average face sizes