I bought a japanese pattern book on Etsy a while ago, called New York style kids. So far I have used the patterns for a this wrap jacket and pair of trousers. The patterns are really smart and simple. The jacket is just one piece, plus arms. Both patterns were modified slightly; I made the jacket with lining, and buttons instead of ribbons, and the trousers with elastic bands in top and bottom. The original pattern was a little to short for my long legged boy!