Step 1
First, draw pockets on front.
Measure 10 to 12cm at waistline from side waist and 8 to 10cm downward along side seam. Connect the two points with a curved line that is pocket opening line.
Add 4 to 5cm minimum on each side and draw the pocket bag to be done in lining (or lightweight cotton if you want to be more true to jeans style).