New Letter Carrier Shirt Design for the Postal Uniforms Program! These long sleeve postal uniform shirts are made from 65% polyester and 35% cotton blend in a light blue broadcloth without stripes. Women's long sleeved Letter Carrier shirts feature a center pleat placket, two breast patch pockets, hidden pencil compartment in left pocket, topstitched and lined collar, durable press and soil release fabric, and U.S. Postal Service logo patch above the left breast pocket. Order women's carrier uniform shirts by bust size (sizes: 28-44).