These replacement shells are not only versatile but also incredibly durable. They are designed to support individuals weighing up to 350 lbs, ensuring reliable performance and stability during use. These shells are suitable for replacing both the L shells (for lower weight range) or H shells (for higher weight range), offering flexibility to meet individual needs. Moreover, they are also compatible with older XR series models, provided that both upper and/or lower shells are replaced together for proper fit and compatibility. With these replacement shells, you can confidently continue enjoying your Kangoo Jumps rebound shoes, knowing that they are designed to support your weight and provide a comfortable and secure experience.