It's too cold most days this time of year to wear a denim jacket with just a T-shirt, but you should view this piece of outerwear as something to be thrown in the mix with other pieces of outerwear. Sure, you can layer underneath and dress like a rancher, but you can also use the denim jacket as a heavier version of a denim shirt. You can also wear your denim jacket with a blazer or any other buttoned-jacket that's made from cotton or wool. The denim jacket is as versatile as Sriracha, and, like the sauce, should be applied generously to your daily goods.