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The DUCO prescription sunglasses are made of TR90 material,it is extreme flexibility, durability and light weight make it the perfect material for performance eyewear.It can be bent to 90 degrees without broken and can float over water.(See image above) So it is much worth your money than other's Polycarbonate Frame which may be half of DUCO's amount.
1- Measure the widest part of your glasses frames left to right, this is the "width". Next measure the height of the lens with frame included.
2- Choose the DUCO frame that is slightly larger in width and height than your frame measurements.
If your frame width is less than 136mm（5.35inches）,height is less than 37mm（1.45inches）, please choose M size.
If your frame width is longer than 136mm（5.35inches）, shorter than 142mm（5.59inches）;height is less than 37mm（1.45inches）, please choose L size.
If your frame width is longer than 142mm（5.59inches）,OR height is larger than 37mm（1.45inches）,please DON'T choose it.
1- Special design for myopia
2- Easy to cover your glasses frame
3- Polarized lens help to eliminate reflected and scattered glares, restores vivid color
4- Good for sports and other outdoor activities
5- Side Lens for better peripheral vision and eye protection
1. Never clean your sunglasses with paper towels or clothing, which can leave scratches.Just use clean water and DUCO's included cloth to clean it.
2. Never leave your sunglasses under car's front window, especially in summer. Prolonged exposure to the oven-like temperatures inside a car can degrade the lens.
The glasses arrived well packaged and in a reasonable period of time. They just fit over my prescription glasses which I measured carefully before ordering. They cut out most of the light coming in from above and fit closely without slipping. I also like the look of them,
The dimension of my existing glasses were borderline as far as fit but feel they will work. I like how I can wear a helmet and put glasses on and off while wearing the helmet.
I would recommend them to friends.
I like the glasses but they don't come close to fitting over my regular glasses and I went by your measurment chart.
I was just looking for this some cheap clip on sunglasses, and I found these. These sunglasses are way better. They fit perfectly over my glasses. I really like that the stems also have shades instead of solid plastic that just blocks your field of vision.
I have tried several of these over the years and these are the best ones I’ve ever gotten in all areas namely: best appearance, best price, and best visibility and sun protection functionality