Place your fabric in this position to prepare to make your first cut.
Using the back edge of your topper as a guide cut until your scissors tips hit the corner’s edge. This creates the flap of fabric that is to be tucked into the groove on the back of your return section.
Now place your fabric from the front of your topper towards the back and prepare to make your second cut. Using the edge of your return as a guide, cut until your scissors tips hit the corner’s edge.
Place the small corner flap of fabric on top of the topper and fold the front flap of fabric across from front to back.