Thin Blue Line Tank - Chicago Flag Black . These handsome and comfortable Men's Tank Tops designed by Thin Blue Line allow you to flash your support for police officers while at the gym. When you buy one of these you make a charitable donation to one of the many police causes that help fund critical equipment used by law enforcement. By buying this you proudly display your passion for police and law enforcement while making a positive impact in the community. Slay in style while representing your city with this Thin Blue Line City Flag Tank Top. Specifications for Thin Blue Line Tank - Chicago Flag: Manufacturer: Thin Blue Line Apparel Fit: Regular Gender: Male Package Contents: Thin Blue Line Tank - Chicago Flag