I picked this glass case up after I biffed it on my mountain bike and bent the original clam shell I received with the glasses.  Luckily, the glasses survived.  I researched several other cases, but this one appeared to be the most similar to the original.  Given that the original protected my glasses so well, that was the goal.  When the case arrived, I was pleasantly surprised.  It was the right size and just as sturdy as the original.  My ONLY complaint is the color palette.