With shirts, it's all about fit and variety.
The number-one rule: a good fit is paramount. More often than not, your shirt will be flying solo without a jacket, tie or sweater, so give adventurous colors or patterns a shot. Lots of guys favor button-down collars—they're guaranteed to stay neat throughout the day. When it comes to polos, choose a refined one over something super casual.
One of our favorite secret weapons? Wrinkle-free shirts. The best ones come out of the dryer looking like they came straight from the cleaners.