This shipping upgrade DOES NOT reduce the 10 business days production time. This USPS Priority Mail upgrade bumps t-shirt shipping from USPS Ground Advantage to USPS Priority Mail after the item is printed. If ordered during a holiday weekend there may be delays. We are not responsible for how long it takes for the USPS to deliver an item (Ground Advantage or Priority). That is out of our control. All we can do is get your item in the mail, to the address provided.
