Mustang Survival MD315702235 Hit™ Inflatable PFD, Orange The Inflatable Lifejacket with HIT (Hydrostatic Inflator Technology) is the first Transport Canada approved lifejacket in Canada. Automatically inflates when submerged in 4" or more of water pressure and not inadvertently due to rain, spray or humidity. Exclusive to Mustang Survival in North America and maintenance-free for 5 years or until inflated. Made for the most severe marine environments the inflatable PFD with HIT will meet the challenges of the most demanding users.