Thin Blue Line T-shirt Small Shamrock Black . Patrick's Day T-shirt This Athletic Fit Shirt Is Perfect For Celebrating The Holiday And Showing Your Pride In Our Nation's Police Officers. The Shirt Features A Rugged Shamrock With A Solid Blue Line Running Through The Center Representing The Men And Women That Defend Our Communities. Specifications for Thin Blue Line T-shirt Small Shamrock: Manufacturer: Thin Blue Line Apparel Fit: Athletic Gender: Male Color: Black Package Contents: Thin Blue Line T-shirt Small Shamrock