How to make an origami inside reverse fold.
The double reverse fold is really just two inside reverse folds folded back to back.
|Step 1: Let's start with a paper that's prefolded in half. Fold the left point to the right.
|Step 2: Now fold the point back out the other way.
|Step 3: Unfold by pulling the point back out.
|Step 4: open the paper and fold the point inside.
|Step 5: Fold the point back out and flatten the paper.