Our Synergee Sandbag is a simple yet effective piece of work out equipment that will help you burn fat, strengthen muscles and become more balanced! What makes our Synergee Sandbag such a unique piece of gear is that the sand inside can shift during your exercises, requiring you to constantly adapt to control and support this load. Our Sandbag can be used for a wide variety of movements & exercises and, with it, achieving a full body workout is almost impossible to AVOID! We offer two sizes of Sandbag with 2 different load capacities. Our Pro Sandbag can hold up to 40 lbs and includes (3) loadable 13.5 lb-capacity bags to fill the Sandbag with. Our Elite Sandbag can hold up to 100 pounds and it comes with (4) loadable 25-lb-capacity bags. Note, our Sandbags to not come weighted (i.e. do not come loaded with sand).