I just wanted a lightweight jacket for tooling around outside, taking the dog's out quickly etc.. and this fit's the bill.  Someone noted that these jackets run BIG but they do not.  I wear a 2xx jacket and what I got was a 2xx jacket with little room to spare for layering.  If you plan on layering with a sweater, hoodie underneath or if you prefer your clothes a little big then get one size bigger IMO.