Size chart for GAP long sleeve pyjamas
Size Chart for Bon bebe 3 pcs romper
Size Chart for Carter's baby romper
I've checked the size(gap pyjamas),but it's not really same as the chart shown below,approximately + or - 2 cm.
And the size of pyjamas between made in china & made in malaysia also quite different.
So my advise is just using this chart as a guide only. maybe you can choose the larger one as our children growing up so fast... depend on your choice :-)