This "classic" PFD comes in several sizes for adults and children and is for calm inland water where there is chance of fast rescue. It is less bulky and less expensive than a Type I, and many will turn an unconscious person face-up in the water. 
TYPE 3                   
Flotation Aid

These life jackets are generally considered the most comfortable, with styles for different boating activities and sports. They are for use in calm water where there is good chance of fast rescue since they will generally not turn an unconscious person face-up. Flotation aids come in many sizes and styles.

TYPE 5
Special Use Device

Special use PFDs include work vests, deck suits, and hybrids for restricted use. Hybrid vests contain some internal buoyancy and are inflatable to provide additional flotation.

A proper fit means once it's zippered and/or buckled, it should keep your head and upper shoulders above the water. If it fits too loose, the flotation will push the jacket up around your face. If your life jacket is too small, it won't keep your body afloat. When not using your life jacket (when you're not boating), store it in a readily accessible place away from sunlight and chemicals. Nylon and other synthetic materials used to make your life jacket will be harmed over time by ultra-violet radiation from the sun. Fabric that becomes discolored may indicate ultra-violet damage. In other words, don’t leave your PFD hanging outside all summer exposed to the sun and expect it to be unharmed. Also, prolonged exposure to chemicals or exhaust fumes can attack the flotation’s foam.
A proper fit means once it's zippered and/or buckled, it should keep your head and upper shoulders above the water. If it fits too loose, the flotation will push the jacket up around your face. If your life jacket is too small, it won't keep your body afloat. When not using your life jacket (when you're not boating), store it in a readily accessible place away from sunlight and chemicals. Nylon and other synthetic materials used to make your life jacket will be harmed over time by ultra-violet radiation from the sun. Fabric that becomes discolored may indicate ultra-violet damage. In other words, don’t leave your PFD hanging outside all summer exposed to the sun and expect it to be unharmed. Also, prolonged exposure to chemicals or exhaust fumes can attack the flotation’s foam.


TYPE 3 and 5
Inflatable Life Jacket

These are highly visibile when inflated and turns most wearers and unconscious users face-up faster than traditional PFD's.