Cutting felted items

I finished a few felted bags that call for a zipper to be put in. Well the part where the zipper is supposed to go felted a little funky and the zipper looks funny when I put it in. I want to know if I can trim the bag a little to make it more straight, and easier to put the zipper in. It won’t come undone if I do that, right? Did that make sense? :lol:

you can cut felted things, I’ve cut a fleted Ipod case before and nothing unraveleled.

As long as you felt it firmly, you will have NO problem!!