Now go to the top of the bag and the only raw edge remaining.
Decide which side is the rear of the bag.
Fold the bag in half lengthways, match up the side seams and press a crease down the middle so you have the centre back.
Measure down from the top raw edge along the centre back crease to create a mark 10cm down from the top.
Apply the eyelet here as the manufacturer’s instructions on the packet.