The award-winning MD3153 LE Inflatable PFD with HIT™ (Hydrostatic Inflator Technology) is Mustang Survival’s top-of-the-line inflatable PFD. Designed for serious users with exclusive technology that enhances safety and minimizes maintenance. The Hydrostatic Inflator Technology offers reliable inflation in a low maintenance design that will only automatically inflate when submerged in 4 or more inches of water and not inadvertently due to rain, spray or humidity. Made for the most severe marine environments the Inflatable PFD with HIT™ will meet the challenges of the most demanding users. It also features the patented SecureZip™ closure system to ensure the PFD will stay closed during even the most rigorous activity and still opens effortlessly upon inflation. The MD3153 LE includes a back flap that can be silk screened with your department identification.