A navy and white horizontal striped crew-neck t-shirt and navy chinos are a smart combo that will effortlessly carry you throughout the day and into the night. Tobacco woven leather oxford shoes are a simple way to give a dash of polish to this ensemble. So when spring is in full effect, this look is likely to become your uniform. As a gentleman in his thirties, you probably want to start dressing more professionally. If that's the case, combos like this are a real lifesaver.