2 strand wall
This is a round knot that can be used for a kadara body harness.
start with an overhand knot.
From the top, reach in between the two lines.
Grab the opposite side of the overhand knot.
Pull your hand out, taking the line you are holding with it.
If done right, the two lines should form a symmetrical double helix around each other.
If the knot is not quite symmetrical, push it downward somewhat and the two halves should fall neatly into place.