Mustang Survival’s new Deluxe HT series of inflatable personal flotation devices feature an auto hydrostatic inflator for high-risk weather conditions. Each PFD’s inflation device is triggered by hydrostatic pressure when submerged four inches below the water surface, and is not sensitive to rain, water spray, or humidity. The inflator is maintenance free for five years, unless fired. Vests are outfitted with a Hammar Type 1F auto hydrostatic inflator with manual backup and a safety inspection window for viewing inflator status and replacement date. The compact, lightweight vests also feature the patented SecureZip bi-directional zipper and a neoprene ComfortCollar.