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What Is Heel Drop In Running Shoes? What Runners Need To Know
When you compare running shoes, you may see a figure such as 4mm, 8mm or 12mm listed as the heel drop. It is easy to assume that the number tells you how thick or cushioned the shoe is. In fact, it describes the difference in height between the sole beneath your heel and the sole beneath the front of your foot.
Knowing what heel drop means can help you compare shoes, especially if you are replacing a pair you already enjoy running in. It is only one part of the design, though. Two shoes with the same drop can feel very different on your feet.
What Does Heel Drop Mean?
Heel drop, also called heel to toe drop or offset, is the difference in height between the heel and forefoot of a running shoe. It is measured in millimetres.
Imagine a shoe with 36mm of sole beneath the heel and 28mm beneath the forefoot. The difference is 8mm, so the shoe has an 8mm drop. If the heel and forefoot are the same height, the shoe has zero drop.
Zero drop does not mean there is no sole beneath your foot. It only means the heel is no higher than the forefoot. A zero drop shoe can have very little cushioning or a thick layer of it.
What Is Considered Low Or High Heel Drop?
A zero drop shoe has a 0mm difference between heel and forefoot height. Shoes described as low drop commonly sit around 1 to 5mm, while higher drop shoes are often around 8 to 12mm. Many shoes fall somewhere between those ranges.
These are useful descriptions, but brands do not all divide their shoes into the same categories. The published measurement is a better point of comparison than a label such as “low drop”. Even then, a difference of a few millimetres does not tell you exactly how two shoes will feel when you run.
The stated drop is measured on the shoe, while your experience also depends on how its foam compresses and how the rest of the shoe is shaped. Treat the number as a guide to the design rather than a promise about how it will feel.
How Can You Find Your Current Shoe’s Heel Drop?
Look up the exact model and version of your running shoe on the manufacturer’s website. Heel drop is usually listed with specifications such as weight, cushioning or stack height. Check the version carefully, as a newer edition of the same shoe may have different specifications.
If you cannot find your shoe online, a specialist running retailer may be able to help identify it. Measuring an old pair yourself is less reliable, particularly when the sole has worn down or the foam has compressed over many miles.
Your current shoe gives you a useful reference. If it has an 8mm drop and you have been comfortable running in it, you can compare that figure with shoes you are considering. You can still choose something different, but you will know when you are making a more substantial change.
Is Heel Drop The Same As Cushioning?
No. Heel drop measures the height difference between the heel and forefoot. Stack height describes how much shoe sits beneath your foot. Cushioning also depends on the materials used and how they feel under load.
For example, a shoe with a 34mm heel and a 26mm forefoot has an 8mm drop. Another with a 24mm heel and a 16mm forefoot also has an 8mm drop. Their soles are different thicknesses, even though the drop is identical.
This explains why zero drop and minimalist are not interchangeable terms. Minimalist shoes generally have thin, flexible soles and little cushioning. Maximalist shoes have much thicker soles. Both designs can place the heel and forefoot at the same height.
Does Heel Drop Change The Way You Run?
Heel drop can influence how a shoe feels and how your legs respond to it, but it does not control your running form. You can land on your heel in a low drop shoe. Equally, wearing a high drop shoe does not mean you must heel strike.
Moving from a higher drop to a much lower one can feel more demanding on your calves, Achilles tendons and feet, particularly if your legs are accustomed to your previous shoes. That is a reason to introduce the change gradually, not evidence that low-drop shoes are bad for runners.
There is no heel drop figure that has been shown to prevent injuries for everyone. You do not need to change where your foot lands or pursue zero drop to run well.
Which Heel Drop Should You Choose?
If your current running shoes fit well and you run comfortably in them, their drop is a sensible starting point. When trying a replacement, consider the whole shoe: its fit around your foot, the cushioning underfoot, its shape and how comfortable it feels while you move.
If you are new to running, you do not need to pick an ideal drop before buying your first pair. Try shoes that fit properly and feel comfortable. A specification can help you understand a shoe, but it cannot choose one for you.
Your preferences may also change with the type of running you do. You might enjoy one shoe for easy miles and another for faster sessions. The useful question is how each pair feels and performs for you, rather than whether one drop is universally better.
How Should You Change To A Lower Drop?
A small change from your usual shoes may feel unremarkable. A move from a high drop shoe to a zero drop shoe is more substantial and deserves a slower introduction.
Begin with short, easy runs in the new pair and keep using your familiar shoes for most of your training. Increase the time you spend in the new shoes as you become comfortable in them. There is no single timetable that suits every runner, so pay attention to how your calves, Achilles tendons and feet respond.
Try not to combine the change with a sharp increase in mileage or intensity. If pain develops and persists, reduce your use of the new shoes. If it continues or affects your running, seek advice from a qualified professional. There is no benefit in pushing through pain to complete a change of footwear.
Final Thoughts On Heel Drop In Running Shoes
Heel drop tells you how much higher the heel of a running shoe sits than its forefoot. It is useful for comparing shoes, but it does not tell you how cushioned a shoe is, dictate your foot strike or identify the best pair for every runner.
Check the drop of shoes you already enjoy, then consider it alongside fit, cushioning and comfort when choosing another pair. If you decide to make a substantial change, give your legs time to adapt.
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