i dont think there is one meant for it i have one and for a purse shouldnt be to bad just going on the safe side take off the top and find a place to put that but otherwise its a fairly rugged heavy
device so i can take abuse
i have dropped mine from 6 feet and still works great
so just take care of the top and you will be fine
as for the case a ego case can work for it if you got 18350s in it