Why do I think this is the best button down shirt? The main reason is its versatility. I’ve never been a huge fan of slim fit shirts – it’s a personal preference because I really hate it when shirts with sleeves are too close to my body (I have sensory processing disorder). So I usually tend to buy the largest sized pieces. But when it comes to the best? This is it. It’s the perfect choice between shirts. It’s the perfect oversized, but not overly four-square. It’s the perfect shirt. How to Design a Button Down ShirtWhen I say this button down is so versatile, I mean it. I have…