A child harness has a child carrying pouch that is a generally flexible piece of material with side edges which define at least a part of a respective leg opening in the lower part of the pouch. The piece of material includes an elastically flexible sheet that is enclosed in a fabric casing, with a first piece of fabric on one major surface of the sheet and a second piece of fabric on the other major surface of the sheet. The pieces of fabric are sewn together to provide a seam. The seam is placed on the one major surface of the piece of material in the region of a respective leg opening at a distance of at least 0.5 cm from the edge of the leg opening.