Putting together a waistcoat and chinos is a guaranteed way to infuse style into your day-to-day wardrobe. Complement this ensemble with dark brown leather derby shoes and off you go looking awesome. During winter, when practicality is critical, it can be easy to surrender to a less-than-stylish ensemble. But this ensemble is a good illustration that you totally can stay comfortable and remain stylish during winter. As you go into your 30s, you want to start dressing more professionally. If that's the case, outfits like this are perfect as inspo.