The knot that is most commonly used for tying into a harness is the Figure 8 Follow-through (or rewoven Figure 8). The Figure 8 Follow-through has a variety of advantages over other knots, as it is ...

Use this knot to tie fixed, super-strong ... Pull it tight, and you're all set. A figure 8 is used when you need a stop knot on the end of a rope or a non-jamming loop in the middle of a rope.