If you take fashion seriously, go for a casually stylish outfit in a sweater vest and olive corduroy chinos. Up the ante of your look by finishing with brogues. During the winter months, when comfort is above all, it can be easy to settle for a less-than-stylish ensemble. However, this ensemble is a clear example that you can actually stay toasty and remain stylish in the winter months. So if you're looking for outfit ideas on what to wear as you get into your 30s, this pairing is perfect.