The MACCHU harness is Intended for children weighing less than 40 kg. � Adaptable with the growth of your child, thanks to a wide range of adjustability � DOUBLEBACK waistbelt and leg loop buckles allow quick adjustment to your child's size � Optional BODY shoulder straps help your child remain in an upright position while learning to climb � One size � Certification(s): CE EN 12277 type C, UIAA