Dress in a grey plaid wool blazer and white chinos to put together an interesting and modern-looking ensemble. To give your ensemble a more sophisticated finish, introduce a pair of dark brown leather brogue boots to this look. So as you can see, it's a dapper, not to mention spring-ready, ensemble to have in your transitional rotation. So if you need outfit ideas on what to wear as you reach your 30s, this outfit is a good example.