Extremely durable fabric, zippers, and hook and loop closures provide the base for these sand bags. We have 2 sizes available, this black one that holds approximately 100lb (marked 50kg on the bag) and the green one that holds approximately 60lb (marked 30kg on the bag.) The 100lb bag comes with the outer shell and 3 removable liners. The 60lb bag comes with the outer shell and 2 removable liners.
*Sand not included!