Women in this area of Indonesia typically used one piece of material to cradle their children. A single twist of the material just behind the neck is all that's needed to join both ends of the material and keep the child secure. The sun can be hot. In the early morning, I was curious about the white markings on one or two children going to school. I thought it was a skin colouring problem. Only later did I realise that it was sun tan lotion.