66fit FLUX Power Bag - 25kg Water WeightThe 66fit Flux Power Bag is the ultimate training tool for a full body workout at home. Simply fill with water and air and you are ready for a workout. By using water it provides a dynamic, unstable training environment which can help improve strength and power. Use the 66fit FLUX Power Bag to perform squats, lunges and a wide variety of push and pull exercises. It's also portable so you can take it with you while travelling. You can train anywhere,