Marrying a yellow hoodie with a navy suit is a smart pick for an effortlessly sleek menswear style. For something more on the cool and casual side to complement this getup, opt for low top sneakers. As you can see, this combination is a really smart option, especially for awkward fall weather, when the temperature is falling. As a 30-something guy, you want to start dressing like an adult man. That's when combinations like this become a great source of inspiration.