For a look that's super straightforward but can be styled in a myriad of different ways, wear a light blue chambray dress shirt and white jeans. Add a pair of dark brown leather casual boots to the equation and off you go looking spectacular. Seeing as autumn is setting in, this look seems a smart pick for the transitional season. As you're transitioning from your 20s to your 30s, you want to start dressing like an adult. If that's the case, ensembles like this become a great source of inspiration.