Comments: I have worn these glasses for years and the right lens is very difficult to replace. You must get it to snap into place or you can not wear the glasses because they will fall out of the frame. Buy some other brand. There are glasses on the market that are just as good for playing tennis.
From: Fran, 11/12

Comments: The right lens doesn't sit in the frame the same as the left lens. Consequently, if falls out every so often. I think it happens because the frame is too flexible, so the lens doesn't want to sit in the frame snugly. Looking at similar comments from people who purchased these glasses, it's clear this is a design fault. I think they should stop selling them and get the problem fixed.
From: Peter, 8/12

Comments: Could not use the glasses due to the right lens falling out. The manufacturing process was faulty by not aligning the cut in the lens with the bump in the channel, which rendered them useless. Frame is very flexible in order to accommodate interchanging the lens which makes any misalignment of the lens fatal. Otherwise, if I could have used them, I would have liked them.
From: Bob, 5/12