Improved performance efficiency: High backrest and EVA foam provide buoyancy and support during swimming training, improving safety and training effectiveness. Maximized versatility: Durable nylon belt with sturdy buckles and an adjustable strap offers a secure, customizable fit for different waist sizes. Scope of application: A versatile buoyancy belt for pool use, suitable for both beginner swimmers and professional training, ideal for water formation and improving skills. Upgraded swim support: Easy for adults or children to use, with multiple styles available to suit varied preferences and experience levels. Usage scenarios - In a lap pool for beginners to learn buoyancy, body position and kicking technique with steady support. - During structured swim workouts for intermediate or advanced swimmers to focus on technique while maintaining buoyancy. - Family or group training where adults and children share the belt, thanks to adjustable sizing and style options.