Not a good fit for all glasses.....
Couple of issues if you have a thin temples this has possibilities.  Thin temples and a dedicated pair of glasses (put them on once) would be a good thing.  If like me you have wide temples.... not good.  I had to cut off most of the material to be able to actually get it on and I was afraid I would break the glasses.... and only put the safety on when needed so.... might work and could possible be a good solution but you better have round thin temples... or be willing to hack them.  I have used them since cutting them but I think they will work.... I think... good luck
Rating: 3 stars