Mustang MIT 100 Convertible Auto/Manual Inflatable PFDWhen versatility is key, look no further than the MIT 100 Convertible PFD. With the ability to easily switch between automatic and manual inflation modes, it's the right choice for navigating inshore and coastal waters. Our exclusive Membrane Inflatable Technology (MIT) and high tenacity nylon fabric take lightweight and durability to new heights. Efficiently transition between automatic and manual inflation modes on the go with a simple change of the