Our boys kilts would generally be made from a 13oz worsted material, which ensures that the pleats stay as sharp as possible and that the kilt has a full "swing". They are traditionally hand sewn by fully qualified kilt makers, who have many years of experience in the trade. All of our products are made in Scotland.
We would generally add 3 or 4 pleats under the apron when making a childs kilt to allow for growth, and a 2inch or 3inch hem which can be let down as the child grows in height.