Putting together a navy leather biker jacket with sweatpants is an on-point choice for a relaxed but on-trend ensemble. And if you want to immediately smarten up your getup with one piece, introduce silver slip-on sneakers to the equation. This outfit is a good pick when it comes to planning a well-coordinated ensemble for unpredictable fall weather. Ideal if you're looking for some amazingly inspiring relaxed casual style for young men.