This case is stiff and provides great protection for the Battle Vision glasses. They fit in perfectly. I only wish it was easier to open. The zip all around feature keeps glasses clean and secure, however, it is difficult to get glasses out while driving. In addition, the cases are too large to fit in the little storage areas in my car where they are out of the way but easily accessible. Since I have both the sunglasses and the night vision glasses, it would also be nice to have a way to label the cases to identify which glasses are inside day/night. But for their intended purpose of protecting the glasses, this case is great!