It's been around forever and was bred out of necessity. The world needed a companion garment to jeans that could go the distance when faced with hard labor. The denim work shirt was born and is still a workhorse to this day. Its humble beginnings a thing of the past, it's one of the few items that can be worn all year and with practically everything. Since we're fully into Summer, it's effortless as a beach cover-up, yet totally acceptable at the office when tucked into a feminine pencil skirt. Add the right accessories like a skinny belt and wear with heels. Come Fall, don't be surprised by head-to-toe denim mixed and matched in all sorts of ways. If you haven't yet, the purchase of the right denim shirt could be an almost lifetime investment.