The leather a quality image. Padded interior, it results in a thick protective shell. You could probably sit on the mouse and it would happen. (No, I have not tried)
How to note some other reviewers already, the envelope was sitting with me at first very tight. I thought it would be too small, but now turns out that as a positive. After several weeks of use it is now much easier in the shell, but sits so tightly that they can not get even with vigorous shaking of the envelope. So should be!
To get the mouse out of the sleeve there is a small wide ribbon, which is manned front for better grip with a piece of leather. The system is known by various cell phone cases, and it works well here properly. When you pull on the cord, the mouse comes out of the envelope. But only so far that you can pull out it, and not the extent that they fall out on their own.
I am completely satisfied with this product, the money was worth it.