I use Boleos for years which came with insets. They stopped making them.
My prescription is so strong that the only solution was to go with a pair of Oakleys which look like regular rather than cycling sunglasses and come with transition lenses so I can wear them day or night. Unlike my regular glasses and sunglasses they are not varifocal as I find that varifocal lenses confuse me when it comes to looking at the ground and perception of height. This may just be me. That said, to deal with my prescription they are specially ground to be very thin and they cost around £600. The bulk of this cost was on lenses. I wear straps on them to keep them on my head in crashes as i don't want them to break. Not at that price.
I use Boleos for years which came with insets. They stopped making them.
My prescription is so strong that the only solution was to go with a pair of Oakleys which look like regular rather than cycling sunglasses and come with transition lenses so I can wear them day or night. Unlike my regular glasses and sunglasses they are not varifocal as I find that varifocal lenses confuse me when it comes to looking at the ground and perception of height. This may just be me. That said, to deal with my prescription they are specially ground to be very thin and they cost around £600. The bulk of this cost was on lenses. I wear straps on them to keep them on my head in crashes as i don't want them to break. Not at that price.