Large Wide Frame Polarized Bifocal Sunglasses For Fishing Style P13 Choose Power:+3.00 Bifocal Power The semi round shape needs

The semi round shape needs to be nearly the same shape as your glasses and the size clip-on needs to be the same as the measurement of your glasses or the next size bigger

rated UV400 and scratch resistant

Metal frame modified Av shape with scratch resistant UV400 lenses

Measure your glasses at it's widest points

it will just overlap a little

Large Wide Frame Polarized Bifocal Sunglasses For Fishing Style P13 Choose Power:+3.00 Bifocal Power The semi round shape needsWide polarized bifocal fishing sunglasses with a wrap around frame. The lenses are polarized and rated UV400 protection. This style is mostly meant for fishing which is why the bifocal is bigger making it easier to tie your hook. The frame wraps around the side of your face to keep the light out from the sides. The bifocal itself is tinted but not polarized so you can read your digital device while fishing. Measurement 5 1 2 inches width x 1 3 4