Which device is also known as a throwable life jacket?

A throwable life jacket, often referred to as a "Type IV personal flotation device," is designed to be thrown to a person in distress to assist them in staying afloat until rescue can be initiated. Type IV devices are typically rectangular or buoyant cushions that are easy to reach and toss to someone who has fallen overboard or is struggling in the water. Unlike wearable life jackets that need to be put on to be effective, a Type IV can be thrown directly to someone, making it a crucial safety item on board vessels.

The distinction between this and the other types is significant. Type I life jackets are designed for maximum buoyancy and are suitable for offshore use, while Type II jackets are intended for inshore use and provide basic buoyancy. Type V jackets are specialized and must be worn to be effective, which differentiates them from the throwable nature of a Type IV. Understanding these classifications is essential for ensuring that appropriate safety gear is available and used on the water, enhancing overall maritime safety.