So I made the mistake of tossing my new bag into the back of a cab. Big mistake. The next morning I discovered these marks (see photo).
I tried soaking that end of the bag in Woolite, and it had no effect. I'm concerned it might be some sort of bleach, since it doesn't look like dirt. Anyone encounter anything similar? I use this bag for work, so I really wanted it to stay looking good.
Any suggestions gratefully accepted!