Police Life Insignia T-Shirt featuring the Police Life Insignia. Great police Shirt for Police Officers, Police Supporters, and fans of the Thin Blue Line. The American Apparel t-shirt is the smoothest and softest t-shirt you’ll ever wear. Made of fine jersey, it has a durable, vintage feel. These classic-cut shirts are known for their premium quality, as well as ability to stand up to a washing machine (will keep size and color after many washings). The shirts are 100% fine jersey cotton. These shirts run small.