Uber dapper and functional, this off-duty combo of a biker jacket and a navy v-neck sweater provides excellent styling opportunities. For something more on the classier end to finish off your getup, introduce charcoal leather brogue boots to the mix. It's a viable idea when it comes to planning a well-coordinated getup for transeasonal weather. This pairing shows how to kill it in casual dressing as a man in his twenties.