Vested Interest in K9s, Inc. is a 501c(3) non-profit whose mission is to provide bullet and stab protective vests and other assistance to dogs of Law Enforcement and related agencies throughout the country. We exclusively offer a state-of-the-art bullet and stab protective vest, made in the United States, that offers ultimate protection for K9s. Become a sponsor and help protect our K9 officers! Sponsors donating the cost of a vest may opt to have the vest embroidered, at no additional cost. Click the “Become a Vest Sponsor” button on our website to find out how you can provide a vest for a law enforcement K9.