Sublimated Polo Shirts Designer. Valkout Apparel always makes samples of custom polo shirts with your own design and custom logos before doing bulk orders or working together on dye sublimation polo shirts. These samples are sent to you so that you can personally check the quality. You can check our ability to design, the quality of our printing, sublimation heat transfer, sewing, and packaging. We always provide excellent after sale service and communicate immediately with customers. We finish custom team polo shirts in about five days for samples. We will always provide you with real time updates regarding the actual production, which is dependent on the actual quantity.