Used with the Macchu Climbing Harness, the Petzl Kids' Body Harness helps children stay upright on top rope. It envelops the child's back in cushy padding, and the shoulder straps adjust for a secure fit with the same DoubleBack buckles as Petzl's adult harnesses. The white tie-in points align with children's center of gravity to keep them upright as they enjoy climbing. The Body Harness is compatible with any seat harness, and it cannot work without one.