If you don't like getting too predictable with your outfits, try pairing a blazer with grey cargo pants. Shake up your outfit by slipping into grey athletic shoes. When it's one of those bleak fall days, what better to brighten it up than a dapper outfit like this one? As you're getting to your 30s, you want to start dressing more professionally. If that's the case, combinations like this come in very handy.