A three piece suit looks especially classy when worn with a white dress shirt for a look worthy of a refined gent. If in doubt about what to wear in the shoe department, add tan oxford shoes to the mix. When summer settles in you want to feel fresh and sharp –– this outfit is just the right one. As you're heading into your 30s, you want to start dressing more elegantly. In this case, looks like this are a lifesaver.