This jacket helps keep me warm enough around 40-50 degrees weather. It is lighter than I expected, but still keeps me warmer than any heavier jackets out there. One thing that bugs me a little is that it sheds a bit initially, both on the outside and inside. If you are wearing a white shirt underneath the jacket, you will find many tiny fur balls stuck to the shirt. It's the same situation on the outside. If you were to rub against another person's clothing, you might get some fur on the other's clothing. However, this only lasts a little bit and it stops shedding after a few uses. Overall, I am pretty satisfied with this jacket and I would recommend this to others.