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I have a requirement where I want to tie a knot with the two ends of a cord where the length of the loop can be adjusted using either of the ends. (The knot has to be present on both the ends of the cord)

I want to use this to hang my compass/whistle (or any other smaller objects) around my neck while I go outdoors. While fixing the length of the cord would work in most of the cases, using an adjustable knot allows for the cord to be used by multiple people without retying or using a different length cord.

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    I'm voting to close this question as off-topic because it is not related to outdoors.
    – april rain
    Commented Apr 9, 2018 at 13:53
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    @JamesJenkins Most of other knot questions don't specify that they are used in the outdoors but are considered ontopic, I don't see why this one wouldn't be. Commented Apr 9, 2018 at 15:01
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    Will those voting here kindly weigh in on this meta, please: outdoors.meta.stackexchange.com/q/1154/9109.
    – cobaltduck
    Commented Apr 9, 2018 at 15:54
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    @cobaltduck I'm voting to keep this open. This makes sense when you replace a pendant with a compass or a whistle that you need to tie up. Have expressed the same in the meta discussion. Commented Apr 10, 2018 at 5:38
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    The question has been modified significantly to make it within scope. The answer in itself shows that this is a very useful question for anyone trying to carry stuff outdoors. Commented Apr 11, 2018 at 12:53

2 Answers 2

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A double fishermans can be adjusted for length by pulling on each knot and sliding them along the strand. You can also adjust the tail lengths and increase the number of turns to improve the appearance and use up extra slack.

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    Perfect answer. The length is cut in 1/2 at most. I use this on my bike to carry my keys. I can shorten it up so they don't flop around. Another good use is compass as can pull it out to use it.
    – paparazzo
    Commented Apr 9, 2018 at 21:40
  • Double fisherman is good. Taught Line Hitch is the first one that came into my head.
    – Dalton
    Commented Apr 11, 2018 at 20:02
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In addition to @Mike's excellent answer I'd like to suggest replacing the barrel knots of the double fisherman's with blake hitches. If properly dressed and set this will prevent the loop from sliding back to full length when under load, whereas the double fishermans slides a lot quicker.

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  • The Double Fisherman's is the knot I remember and yes it did close up over time and with load. I will try using a barrel knot on one side and the firmer looking Blake hitch on the other.
    – M. Troy
    Commented Apr 13, 2018 at 19:13

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