Discover unrivaled safety and comfort with Mustang Survival's MD3183 Deluxe Inflatable Personal Floatation Device (PFD). Our award-winning, top-of-the-line inflatable PFD integrates Hydrostatic Inflator Technology (HIT), which provides reliable inflation and demands minimal maintenance.The PFD's unique HIT only triggers automatic inflation when submerged in 4 inches of water or more, eliminating accidental inflation due to humidity, rain, or spray. Exclusive to Mustang Survival in North America, this feature requires no maintenance for 5 years from the date of manufacture or until inflated. This makes it an ideal companion for the harshest marine environments, meeting the needs of even the most demanding users.We've incorporated our patented Secure Zip closure system to ensure the PFD stays closed during rigorous activities, yet opens effortlessly upon inflation. This PFD is designed for maximum mobility, low profile, and can comfortably be worn over a T-shirt or thicker garments, depending on weather conditions.Constructed with durable 420-denier nylon and heavy-duty polyurethane-coated nylon, this PFD offers impressive durability. When inflated, it provides a buoyant force of 35 lbs. (15.88 kg). The PFD has a status indicator window (green signals it's ready to go) and houses the inflation cylinder (33 g CO2) within the bladder to protect against corrosion.The MD3183 Mustang Survival Inflatable PFD features a strobe light holder, safety whistle, and SOLAS reflective tape on the bladder for enhanced visibility and safety. It comes with a backup oral inflation tube for manual inflation and a D-ring for kill-switch attachment. This PFD is approved by the U.S. Coast Guard (USCG) as a Type II Personal Flotation Device (PFD) and includes an owner's manual.