Slipping Shoelaces? Crooked Bows?

Slipping Shoelaces?  Do your shoelaces always come undone? Do your shoelace bows sit vertically instead of across the shoe? If so, you're probably tying a "Granny Knot", and one simple change to your technique will result in a balanced knot that sits straight and stays secure.
Crooked Bows?This page explains the "Granny Knot" phenomenon in some detail. Put simply:
  • The Granny Knot is the most common reason for shoelaces coming undone;
  • It's caused when the Starting Knot & Finishing Bow don't "balance" each other;
  • It can be spotted by the tendency of the bow to sit crooked (i.e.. heel to toe);
  • It's fixed by reversing one stage of the knot, most easily the Starting Knot.
These diagrams are all drawn as though looking down at your own shoes while tying, and are color-coded to make it easier to follow where the lace runs. The lace end that starts on the left side is Blue and the end that starts on the right side is Yellow. For color-blind visitors, Blue=Dark=Left, Yellow=Light=Right.
This page is quite extensive and presents a lot of information on the "Granny Knot". If you'd prefer a simpler video presentation, Click Here.

What Causes a "Granny Knot"?

Starting knot diagram
Balanced shoelace knot diagram
Right way results in a balanced knot
Shoelace knots are usually tied in two stages: Starting Knot followed by Finishing Bow. Each of these stages "twists" the shoelaces slightly, so it's important that the two stages be tied in opposite directions in order to cancel out each other's twists.

This balances the knot both visually (the bow sits straight) and functionally (the knot stays securely tied).
Un-balanced Granny Knot diagram
Wrong way results in a "Granny Knot"
If both stages are tied in the same direction, those twists compound each other, resulting in an un-balanced knot that sits crooked and comes undone more easily. This is commonly known as a "Granny Knot" (or "Slip Knot").
While there's only a subtle difference in tying technique, there's a big difference in security. This is not simply an "Old Wives Tale"; it's based on millennia of established knowledge. In fact, there's even a poem taught in Scouting, which goes something like:
Right over left, left over right,
Makes a knot both tidy and tight.
The difference is due to the adjacent contact points within the finished knot. In the balanced shoelace knot, tension on the bottom part of the knot (due to foot movement) will actually pull the adjacent top part of the knot tight. In the un-balanced "Granny Knot", the adjacent contact points run in opposite directions, so the same tension on the bottom part of the knot will actually work the adjacent top part of the knot loose.


Spotting a "Granny Knot"

Balanced Shoelace Knot Un-balanced "Granny Knot"
Balanced shoelace knot picture with straight bow
A properly tied shoelace bow should sit sideways across the shoe.
Un-balanced Granny Knot picture with crooked bow
A wrongly tied shoelace bow invariably twists to point "heel-to-toe".
This rule doesn't just apply to shoelaces; crooked bows due to "Granny Knots" also happen on dresses, aprons, hair ribbons, wedding invitations, even bow ties, all of which use the same configuration as a Standard Shoelace Knot.

Try tying your shoelace, then shake your shoe a bit and look at how your bow sits. If it's sitting crooked, I'd bet that your shoelaces are always coming undone!


Technical Description

Balanced Shoelace Knot Un-balanced "Granny Knot"
Balanced Knot diagram
In knotting terminology, this is known as a "Reef Knot" (or "Square Knot") with "drawstrings" (or "ripcords")
(or simply a "Slipped Reef Knot")
Un-Balanced Knot diagram
In knotting terminology, this is known as a "Granny Knot" (or "Slip Knot") with "drawstrings" (or "ripcords")
(or simply a "Slipped Granny Knot")
While the knotting terminology may sound confusing, it does tell us that these shoelace knots have basically the same core structure as the well known rope knots called "Reef Knot" and "Granny Knot", with the only difference being the "drawstrings" (the ends that are pulled to undo them).

These shoelace knots therefore share the same strengths and weaknesses as their rope counterparts, in particular the fact that "Granny Knots" easily come undone.


Note that any shoelace knot, even those considered "secure" shoelace knots, can end up crooked and less secure if tied wrongly.

Fixing an Un-balanced "Granny Knot"

Okay, so you've just realized that you've wasted your whole life tying and re-tying what turns out to be a "Granny Knot". Don't panic, the solution is as easy as the problem!
Simply reverse your Starting Knot!
Left-over-Right starting knot
Left-Over-Right starting knot diagram
<=> Right-over-Left starting knot
Right-Over-Left starting knot diagram

In other words, if you currently tie your starting knot: "Left end over Right end & through", simply change it to: "Right end over Left end & through", or vice versa.

From the above table of variations, if your method is in the right side (red) of the table, the adjacent method in the left side (green) of the table corresponds to the identical method with a reversed starting knot.

You could also choose any of the variations from the left side (green) of the table, such as running around the back instead of around the front or vice versa, or changing left-handed movements to right-handed movements or vice versa. However, most people will find it easier to re-learn the starting knot than to re-learn the finishing bow.


Important Note for Parents / Teachers

If you ever re-tie a child's laces that have come partly undone, especially when re-tying shoelaces that were originally tied by someone else, make sure that you're not inadvertently creating a "Granny Knot"!
Suppose a child comes to you with laces where the finishing bow has come undone, yet the starting knot is still intact. Don't be tempted to take a short-cut! You should always undo and then re-tie their starting knot just in case theirs was tied the opposite way to yours. Otherwise, the end result could be a "Granny Knot", which will come undone again.

Kindergarten teachers and day care providers probably spend more time re-tying kids shoes than anyone else. It's important that they, of all people, know the correct way to tie shoes. They can also help enormously by learning to spot "Granny Knots" and teaching the child and/or their parents how to correct this problem.
Note that, like adults, some kids' shoelaces are prone to coming undone simply because the laces are too slippery. The solution is to either replace those laces with cotton ones or use Stride Rite© Keep Tys - Laces Keepers.

Conclusion

Hopefully this page has explained the "Granny Knot", has allowed you to identify whether or not you were tying one, and if so, has enabled you to choose a suitable solution. We also hope that you will keep your eyes open for others with crooked shoelace bows and will pass on this information to them.

This shoelace tying information has been provide by Ian Fieggen.


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