If you haven’t discovered the pure bliss of an ultralight and ultrawarm down jacket yet, you need to. At least if you ever get cold or hang outside in cold weather.
The thing is, many down jackets weigh less than a pound. They are incredibly light. Start with a versatile lightweight down jacket — you’ll likely get the most use out of it as you tool around town. Works great when a coat is too warm to be outside and in and back outside again. Plus, you can layer down jacket under a rain jacket or shell and turn it into a system that’s great for skiing or backpacking.
Read more about down jackets at Man Makes Fire.