The first step of putting the hem bonding tape in between the fabric layers - where the scissors are - and bonding the two layers with the iron may be all that is needed. If not, buy a denim or twill knee patch of the desired color (won't show - LOL) and cut it into two right triangles with the angle the same as the row of snaps. I use one now and the other for the next fiesty Utilikilt. Place it as pictured close to the left edge and 1/4 " away from the snaps and iron it down. While still hot I bent the left hem out at a 45 degree angle to help guide the apron onto my left thigh rather than stabbing it.