Why not go for an olive shirt jacket and olive jeans? As well as super practical, both of these items look amazing paired together. The whole ensemble comes together brilliantly when you complete your ensemble with tan suede desert boots. Keep this combo in your head come spring, and rest assured, you'll save a lot of time brainstorming for an ensemble on more than one morning. As you see, in your 30s you have a wide range of dressing options.