Ono's Breton sunglasses frame style features high quality TR90 Grilamid frame construction in an attractive tortoise color with a slight wrap style that conforms to the face. These sunglasses are lightweight and comfortable. Lens construction is constructed of ophthalmic quality CR39 Polarized lens technology. 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 while outdoors. The Blue-Mirror/Amber lens color is a perfect lens option for outdoor activities where reflective glare are most intense, such as snow skiing or boating on the water. Reflective glare from snow or water is very damaging to the eyes when not protected, the Blue-Mirror coating, 100% UVA/UVB protection and Polarized filter offers the outdoor enthusiast the best in sun wear protection. Low-profile reader lens technology is available in 2.25 magnification strength. The Breton frame style best fits the small to medium face.