Love this jacket. It is lined and somewhat thick but not at all bulky. So well made and the material on the outside is weatherproof. Has other cool features too! Ladies fit, true to size. I wear small and ordered a small which fit well with plenty room since it is outerwear. I fell in love with the jacket in Carbon color and went back and ordered the Navy Blue. It is rich in color and not too dark like some brands. Look no further, order this one, you won't be disappointed:)