Trippi's Uniforms is a nationally licensed United States Postal Service vendor. Postal vendor license #24414. We supply a wide range of USPS approved clothing, outerwear, and footwear. **** Please note if NOT purchasing postal items with the USPS issued credit card, you will be required to verify USPS employment before the order is processed. Ater placing your order, please email firstname.lastname@example.org with proof of employment attached. **** We understand that the men and women of the USPS work hard for us everyday and we are committed to do the same for them. Our on-site alterations department is made up of highly trained staff with many years of tailoring experience.