Definitely year-round, Shannon....though I tend to wear mine more in the fall/ spring. Summer is so hot where I live that I rarely need any kind of jacket, even at night, and in winter I just don't feel like wearing my light wash denim or my white denim jacket.
But I DO have a dark wash denim jacket that I wore consistently all last winter, layered over dresses (and under a coat, obviously!) and even (gasp!!) with jeans!! It is the same collarless jacket that Claire owns, and it was great to wear with scarves at the neckline.