So when normal people who are claustrophobic hate being in small enclosed spaces, I hate wearing layers or zipping up my jacket. It's not that I'm scared of doing that, it's just that I can't handle it.
I legitimately wait until the last second in the fall to actually start wearing my jacket. I will freeze in just a sweater for as long as I can hold out until I resign myself to putting on that last layer. But even then, I won't zip it up unless there is a strong wind. My logic is that I have my sweater to keep me relatively warm so I won't need to close myself in with a zipper unless the wind is just cutting through me.
This is why I don't really like autumn or winter too much. Winter redeems itself with fun things you can do in snow and Christmas, at least, but all the clothing I have to wear just sucks.