If you're running a casual clothing line, polo shirts are a must in your store. What makes a polo shirt one of the most profitable items to sell online and at your store? Polo shirts are very popular for both casual wear and business wear. They typically are appropriate for many daily activities. People wear them to work, play sports, attend a nightly event, go on vacation. Custom embroidered polo shirts look professional and make excellent promotional items thanks to their reasonable prices and durability. Custom polo shirts are perfect for advertising and strengthening your corporate image. When your customers andor employees wear custom polo shirts, your brand gains in popularity, just simple as that. This is because the shirts tend to make a huge impact by displaying your company's embroidered or printed logo.