Make a dark brown leather biker jacket and navy jeans your outfit choice if you're scouting for a look option for when you want to look casually stylish. If you're not sure how to finish off, a pair of burgundy canvas low top sneakers is a smart idea. Rest assured, this look will keep you warm as well as looking seriously stylish in this weird fall weather. Wondering how to master casual style in your late 20s? This combination is the perfect answer.