Great tool for cross training, strength building, & anaerobic endurance -
This sandbag backpack functions differently than traditional weights or kettlebells. The less dense weight allows for much more dynamic movement, as well as increasing the work required by often ignored stabilizer muscles. More closely simulates the muscles used from grappling and MMA training, when no training partners are available.
Includes 4 adjustable, heavy duty, sandbags - fill the included 4 sandbags with sand or other material to your desired weight. Each sandbag weighs roughly 7.5 pounds when fully filled with standard sand. Sand not included.
