Pure2Improve Impact Bag. Use the impact bag to increase your technique, rhythm, consistency, endurance and distance. Fill your Impact Bag with cloths blankets, towels or any kind of soft tissue (not included) to start your session in seconds. The bag is made of a heavy-duty high impact material for safe use with all clubs. Creates muscle memory and helps to minimise your slice. The impact bag can be settled to the ground with the included ground peg.