If you're looking for a street style and at the same time dapper outfit, pair a blue denim shirt with blue skinny jeans. To introduce a bit of classiness to this ensemble, complete your outfit with a pair of dark brown leather casual boots. When temps are getting lower and fall is setting in, you'll love this outfit as your uniform for weird fall weather. Wondering how to nail casual style as you move through your 20s? This pairing is the perfect answer.