Karash double loop Karash double loop Karash double loop is a common name for a knot forming two loops. This knot has been a known variant of the Bowline on a bight per the International Guild of Knot Tyers, referred to as "bowline twist" or "twisted collar bowline on a bight". The knot is also referred to as "nœud de fusion" in French references and sometimes called "Fusion knot" in English. The name "Karash double loop" was introduced by Mike Karash, who re-invented the knot to create makeshift harnesses for rescue operations and popularized it among rescue workers. The knot is used for
International Guild of Knot Tyers expressed a wish to be involved from the outset but due to distance were unable to attend the opening meeting. In 2001, archaeological historian Mike Loades attempted a reconstruction of a British Iron Age chariot. He called upon IGKT member Richard Hopkins for his knowledge and experience of how to use the binding and lashing materials available at that time - rawhide, hemp, and flax - and described his contribution to the project as "invaluable". This involves tying six basic knots - reef knot, sheet bend, sheepshank, clove hitch, round turn and two half-hitches and bowline - against the clock.