Mustang Survival USCG APPROVED Inflatble Work Vest. Offers unsurpassed comfort in a type V approved work vest. This Mustang automatic inflatable work vest is the first of its kind, designed and built for serious users. Ultra comfortable and low profile, the Mustang work vest offers enhanced mobility and reduced heat stress allowing crews and professionals to work more efficiently throughout the day. Provides 35 lbs of buoyancy, twice the flotation of foam. The Hydostatic Inflation Technology protects against inadvertent inflation and automatically inflates in 4 inches of water. The hydro inflator is maintenance free for five years or until inflated. Retro-reflective SOLAS tape on outer shell and inflated bladder.