Answer:

Figure-eight loop (also figure-eight on a bight, figure-eight follow-through, Flemish loop, or Flemish eight) is a TYPE of knot CREATED by a loop on the bight. It is used in climbing and caving where rope strains are light to moderate and for decorative purposes.

Figure-eight loop

FigureOfEightLoop.jpg

Names

Figure-eight loop, Flemish loop

Category

Loop

Related

figure-eight knot, flemish bend, Figure-of-nine loop, spider hitch

Releasing

Jamming

Typical use

climbing, caving

Caveat

jams

ABoK

#1047, #531

Instructions

[1]

The Flemish loop or figure-eight loop is perhaps stronger than the loop knot. Neither of these knots is used at sea, as they are hard to untie. In hooking a tackle to any of the loops, if the loop is long enough it is better to arrange the rope as a cat's paw.

— The Ashley Book of Knots[1]

The double figure eight is used to put a loop in the end of a rope, or around an object. It is relatively easy to TIE and is secure, but can become DIFFICULT to untie after heavy loading, and can jam BADLY in any rope type.