EASY TO USE: With a simple movement of your hands, fasten our resistance parachute belt to your waist and experience an increased level of tension when running with this speed training equipment.

fasten our resistance parachute belt to your waist and experience an increased level of tension when running with this speed training equipment Suitable Wherever: Great for track and field ...

For example, it might speed up, slow down or change ... reached terminal velocity - weight and air resistance are balanced. The skydiver pulls her parachute. This drastically increases her surface ...