DO NOT BUY this product. It is a good concept, but was so poorly executed that it results in much worse problems than what it was &#34;designed&#34; to solve. The idea is that you can clip the case to an interior pocket of your purse and have your glasses at the ready. The problem is the clip does not stay attached to the case. It is a piece of plastic that doesn't have any way to secure itself to the case, so the case just falls off the clip down into your purse, the very problem you are trying to solve. It is bizarre that they would fail in the VERY THING it is supposed to solve. How hard would it be to permanently attach the clip or design it to stay securely to the glasses case. DO NOT BUY.