While you're on a boat in the middle of a lake or another body of water, you might think that everything will be fine and that there aren't any kind of risks involved. However, anything is possible, and if there is an incident where you fall from the boat into the water and can't swim, then one of the marine life jackets that are on board could save your life.
At any time while on the water, just like on the road, there could be an accident involving another boat. There could be an issue with the boat hitting debris that is in the water that the driver can't see. Any emergency could result in being in the water. The life jacket can help to save your life as well as others who are on the boat. It helps to keep you afloat if you don't know how to swim or if you don't have the strength to swim in the water on your own because of an injury.
You might think that you can swim just fine, but if you are in the water for an extended period of time or there are a lot of waves in the water, then it can make you tired faster than you realize. The life jacket can give you the support that you need even if you are one of the best swimmers that you know. If there are children on the boat, then the jacket can help to keep them above the water and sometimes help calm their fears of being off the boat.
If it's cold in the water, then the jacket will help to keep you warm. In most cases, you will usually be in your bathing suit while in the water, so there isn't a lot of material that is there to keep your from getting cold. In the event that you are being swept away in a current or if you are below the surface of the water, the life jacket will get you positioned in the direction where you need to be while in the water until you can get help or get back to the boat.