The SKLZ SpeedSac builds explosive leg drive, overall speed and strengthens lower-body muscle groups with resistance training.
- Builds explosive leg drive and overall speed.
- Strengthens lower-body muscle groups with resistance training.
- Handles on the bags allow for various upper and lower body exercises such as lunges or front raises.
- Removable weights allow for variable weight resistance.
- Each weight bag has a 10lbs capacity for a combined total of 30lbs of resistance.
- Adjustable leash length accommodates athletes of any size.