The XXR punching bag features a special technology called Contoured Closed Cell Foam . This technology provides increasing cushioning and disperses well the hitting force, while at the same time increases durability and maintains the integrity of the bag. The heavy punching bag is filled with a blend of synthetic fiber, natural fiber, and sifted sand. That makes it resilient to shock absorption.

The heavy duty straps made off nylon with double end loops, the durable webbing system, the long lasting poly canvas sleeve, and the Nevatear shell are designed to increase the durability . The XXR Punching Bag can take intense and heavy hitting workout. The bag’s high density foam provides not only force dispersion, support and cushioning, but also can prevent moisture transfer into the foam padding.