The product "Fringe for top thinning" (code FRT) gave the solution. Placed with clips, "filled" to the top, the sides, the back of the head and clipped as desired by the client. See video application hereĀ http://m.digibeauty.eu/product/220/77&lang=en
To give extra length and volume to the back of the head, we placed clip on hair extenion (code TRDS4). See the product and video application on the following link http://m.digibeauty.eu/product/353/193&lang=en
Total cost: 147 EUR