Flexible weight! The training with the Gymstick Fitnessbag hits the same notch as the training with kettlebell and power sac: swinging, tearing, lifting for strength and explosive training are the ideal exercises for the BAG. The special thing about the Gymstick Fitnessbag is its flexibility: so that the floor and feet are spared, should it accidentally slip out of hand. The robust and at the same time flexible gymstick fitness bags enable innovative strength and core training. They can be used both inside and outside. Different grip options ensure versatile functional training. The fitness bag represents a combination of kettlebell, medicine ball and boxing in just one training product.