A denim jacket is a must-have, even when it is not cold outside. It is the ultimate in apparel whether you are a hipster or into the grunge scene. It has been trending on Tumblr for a while, especially the cute acid wash designs that you can personalize. It is something you can wear even in the summer, whether it is with a pair of shorts or a sundress. It is important to be comfortable and look your best, which is why you want a denim jacket hanging in your closet. Now you just have to decide whether you want light denim, dark denim, or one of each.