The only real downside to this case is its size and flexibility. The case appears to be rigid, but it actually flattens out so it might not protect glasses if something heavy is dropped on top of them. The case is also basically the size of a small sneaker, which can be inconvenient, though you can make the case that because the case is so large, it’s unlikely you’ll accidentally sit on them because they definitely won’t fit in a pocket.http://www.hontaipacking.com/g....lasess-case/iron-wra