This combo of a violet cardigan and a black v-neck t-shirt is undeniable proof that a straightforward casual look doesn't have to be boring. Tap into some David Beckham dapperness and complete this getup with a pair of black leather monks. Rest assured, this ensemble will keep you toasty as well as looking sharp in this unpredictable fall weather. A solid combination to show the world your maturity as a man in his thirties.