Hi, expecting DC3 soon and was looking at the mamascarf, quite keen to find something to be a little discrete as seem to remember that I end up with boobs out everywhere when feeding but am I right in thinking this is just a large triangle of fabric with a pocket sewn into it? Looks great and easy to use, plus like that baby is upported but if that is all it is then I will make my own. Anyone got one that can tell me? Thanks.