This very thin jacket was kept at my in-laws' house about a dozen years ago when I was commuting from Kansai to Tokyo to care for them. I went to my in-laws' house to tidy up recently for the first time in a year, and I found it tucked away in my own dresser. I'm now at the age where I'm starting to declutter my own belongings, as I'm becoming elderly rather than just a senior. It's been a warm winter. How about this for dog walks, shopping trips in the neighborhood, or errands on a warm train? The hood can be removed. When you open the zipper on the back of the jacket, it becomes a pocket where you can roll up the jacket and store it, making it easy to carry around. It's made of a light material, so it fits easily in a bag. I'll hang it on a hanger instead of keeping it in a bag until someone wants to use it.