To wear this shirt, simply button it up through the single-breasted closure and adjust the turn-down collar to your liking. It's suitable for various casual occasions, like going out with friends or running errands. When it comes to maintenance, machine wash it in cold water with similar colors to keep the print and fabric in good condition. Avoid using bleach as it may damage the fabric. As for sizing, always refer to the size chart as each item might have different measurements. This will help you find the perfect fit and ensure you're comfortable all day long.