Mendocino County Sheriff’s Office K9 Rex has received a bullet and stab protective vest thanks to a charitable donation from non-profit organization Vested Interest in K9s, Inc. K9 Rex’s vest was sponsored by Coburn’s Construction & Cabinetry, Inc. of Willits. Vested Interest in K9s has a mission to provide bullet and stab protective vests and other assistance to dogs of law enforcement and related agencies throughout the United States. The donation to provide one protective vest for a law enforcement K9 is $950.00. Each vest has a value between $1,744 – $2,283 and a five-year warranty.