It's an interesting approach. I used clip on sun glasses for years, but you still have the problem of having to juggle the clips and while they are smaller and

It's an interesting approach. I used clip on sun glasses for years, but you still have the problem of having to juggle the clips and while they are smaller and easier to carry they are also far more fragile and easier to lose. I'm not sure they would provide any benefit over what I have now but it's good to know there are options!