Hi, If I remember correctly, In the front you folded the one side of the shirt so a crease formed between the button of the epaulet to the middle of the pocket. Held it down and got someone to hit it with an Iron. From there you measured 3.5 cm and did the same on either side. Then the other side. On the arm you did it the width of the epaulet... difficulty is to get these ones straight so they dont go off at an angle... have to put the shirt on and someone to put some pins in to show the natural "drop" of the lines. On the bck it is easiest, the three verticle ones are done by folding the shirt in half, doing the cresa, then 5.3cm to either side. Lateral crease is easy after that. You then have to go back and see all is OK and that you have not folded of creased it otherwise, but once those are in you are OK. Best Chris