Ono's Harbor Docks sunglasses frame style features high quality frame construction in a tortoise color, lightweight and comfortable. CR39 lens technology offers 100% UVA/UVB Polarized protection. The Amber lens is a perfect lens color option for low-light conditions; early morning, late evening or overcast weather conditions. The Grey lens color is a perfect lens option for general all day every day use while outdoors. 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. Low-profile reader lens technology is available in different magnification strengths. The Harbor Docks best fits the medium to large face.