If you don't take your style lightly, go for smart style in a navy blazer and navy jeans. For a classier vibe, introduce a pair of brown leather chelsea boots to this getup. As you can see here, this combo is a really smart option, especially for in-between weather, when the temps are getting lower.
A navy blazer and navy jeans are a great pairing worth having in your daily fashion mix. For something more on the elegant side to round off this look, introduce a pair of blue leather double monks to the equation. On not-so-bone-chilling afternoons, you can sport this summer-to-fall getup and look absolutely awesome.