There are five water sports: swimming, sailing, rowing, kayaking, and water polo. Due to the current popularity of water sports, coupled with the increased risk of water sports. Therefore, when participating in water activities, life jackets are an important safety guarantee in the event of an accident. Therefore, wear a life jacket no matter how hot the weather is, and wear the life jacket correctly and buckle the safety button.
Generally, we use marine life jackets. The inside of the material is made of EVA foam, which is compressed and 3D molded, and its thickness is about 4 cm (5-6 pieces of thin hair material produced in China, about 5-7 cm thick). Life jackets produced according to standard specifications have their own buoyancy standards: 7.5 kg/24 hours for adults and 5 kg/24 hours for children, so as to ensure that the surface above the chest rises. The surface is made of materials with good water resistance and air permeability, and in addition to paying attention to its buoyancy, it is also necessary to pay attention to whether the cross-belt interface is damaged to prevent it from floating without gravity after entering the water.
