1The umbrella surface that provides resistance can be adjusted, provide different needs according to different individuals. 2The umbrella body is lightweight, and has an outer bag configuration for easy carrying. 3High?level professional athletes can wear more than 2 drag parachutes at the same time for special training. 4Depending on the speed, 5?15 kg resistance can be provided. 5Adjustable waist belt, suitable for users of all body types. 6The resistance surface is 1.515 meters. Regardless of football, track and field, football, basketball and other sports, the speed is improved. The resistance training effect of this product is very good, and it is suitable for long‑distance running.