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These shells are crafted from premium synthetic leather, rugged canvas, or full-grain leather, depending on the model. Each shell is pre-cut and stitched using industrial-strength thread, built to withstand hours of impact.
A premium blend of recycled textile fibers that’s been sanitized, shredded, and compacted. Unlike foam or sawdust fillers, Jam is designed to replicate real-world resistance: dense enough to challenge power, soft enough to prevent joint strain.
A cylindrical sleeve filled with specially treated sand. This internal ballast adds proper weight and stabilizes the bag’s swing during training.
Next, bags are cleared for boxing. Quality Control teams conduct a full-body check. Workers hand-wipe the shell, test the swing, and measure weight. It’s a quality standard built from decades of doing it the hard way—the right way.
Once approved, the bag is carefully boxed, labeled, and loaded for distribution. From Moberly, it heads to gyms, homes, and fight camps across the country. What leaves the warehouse isn’t just a product—it’s a partner in punishment. A tool of discipline. A cornerstone of boxing culture.
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