It isn't too often that I get to sew for my hubby.
He had a little problem though, and thought I could help him out.
He had a vinyl/plastic case that came with his wrenches. In the heat, the wrenches would sick to it, and they were hard to get in/out. In the cold, they would fall out. It was slowly ripping, so he came to me.
I used a high vis duck cloth, and used the old cover as the pattern. We made a few changes with the sizing, and used an old drawstring from my stash... he rolls it up and ties it closed when he isn't using them.