Swimming buoyancy vests can provide additional buoyancy in the water. 

For people who are not good at swimming, it can make them float on the water surface and increase a sense of security. 

It can prevent those who are fatigued while swimming from sinking and reduce the risk of drowning. For beginners, it is an auxiliary tool that helps them adapt to the buoyancy and resistance of water, reduces fear, and enables them to focus on learning correct swimming postures and movements to improve skills. 

When engaging in water activities such as boating and surfing, it provides emergency buoyancy protection in case of accidents. 

Especially in waters with swift currents, deep depths, or complex environments, it can greatly increase the survival rate. 

In short, it is an important water safety equipment that provides buoyancy support and safety protection for swimmers and water activity participants of different levels.