Fits my MX Master perfectly and I don't have to worry about it when I throw it in my bag.
I like this case.
If you have the MX Master...a $100 mouse and just throw it into your travel bad, it's time to get this nice case.
Excellent quality, I was not really expecting this quality on a mouse case but this case is amazing!
I love my Logitech mouse, and this case is perfect for travel.
This worked for less than four months, and then the strap separated.
Due the the way it happened the case is much less useful right now.
The case itself is good, but the stitching for the carabiner fell apart after only a few months.
Worked well for about a month, but then the strap which holds the carabiner/clip broke so not i cant attach it to anything anymore highly limiting its uses.
However it is still not too bad for the price.