Mustang HIT Inflatable Work Vest - Orange - Automatic/Manual [MD318802-2-0-202]HIT Inflatable Work Vest Orange Automatic Manual If it doesn't say work vest, it's not a real work vest. Ideal for constant wear situations, hot, humid conditions, and high mobility requirements. Available exclusively from Mustang Survival, the Inflatable Work Vest is the first of its kind. Designed by Mustang's Innovation Technology experts and built for serious users, Mustang Survival has pioneered the standards for inflatable work vests. With a