For enhanced comfort, you can find a convenient MULTI-SIZE liner available for KJ-XR3 and PRO models of Kangoo Jumps rebound shoes. This liner is designed to adapt perfectly to multiple sizes, providing a snug and comfortable fit for various users. It is also machine washable, making it easy to keep clean. Simply wash it at 30 degrees Celsius or 90 degrees Fahrenheit to maintain its freshness and hygiene.