Sturdy, sturdy body. I used to carry a Razer Naga Pro with two extra side plates and a charging cable. Also suitable for g602 and cables with lots of extra space. There isn't much padding inside, but the material is very soft. With extra space, you can wrap the mouse in a small towel or bandana and then put it in a case and it will be nice and cozy. I like the case and the quality very much, in this case I would trust my mouse.