“Running shoes for runners weighing up to 80 kg” sounds like the label on a box of cereal. It’s simple but misleading. When choosing the right shoes, it’s not just the runner’s weight that matters. Running technique, pace, and how the foot lands on the ground are also important factors. While it can be convenient to simplify this to numbers, However, it’s just as misleading as choosing tires for a car based solely on its weight.
Where Did the ‘Under 80kg’ Shoe Label Come From?
Considering the level of cushioning in a running shoe alongside the weight of the runner is a considerable oversimplification. This is mainly because it is difficult to find an objective, comparable way to measure the cushioning or “softness” of running shoes. There is no single number, test, or universal scale that clearly describes how a given model will perform during a real run. Foams differ in performance characteristics, flex rate, and energy return.
Therefore, linking cushioning to body weight is a mental shortcut that makes the choice easier. Weight is a known parameter that is simple and easy to communicate. It is also assumed that heavier runners generate greater forces on contact with the ground and therefore need more cushioning. However, in practice, load is determined not only by weight but also by running technique, pace, cadence, and landing style. Kilograms are only a starting point, not a complete answer.
Thus, the term “shoes for runners up to XX kg” intuitively describes the level of cushioning because the heavier the runner the shoe is designed for, the more cushioning the shoe has. The term “for runners up to 80 kg” suggests shoes with less cushioning, while “shoes for runners over 80 kg” means those with more cushioning. Similarly, if the description says “shoes for runners up to 100 kg,” then we are dealing with shoes that have an extremely high level of cushioning.
It’s also worth noting that the phrase “shoes for runners up to…” almost exclusively appears in the context of everyday training shoes. This term is practically non-existent in the case of speed training running shoes. Therefore, while this description may be helpful when choosing running shoes, it is not a decisive criterion. Why? Because choosing the right footwear is very subjective and requires considering multiple factors.
Running Shoes: It’s Not Just About Your Weight
Runner’s Body Type
Not all body types are the same. For example, a tall, slim runner weighing 90 kg usually puts a completely different load on a shoe than a short person weighing 70 kg with a significant amount of excess body fat. Their weights may look similar. However, the biomechanics are different.
For the tall, slim runner, theoretical tables would suggest choosing shoes “above 80 kg.” In practice, though, a slender physique and lower passive mass mean such runners can comfortably run in models classified for lighter users.
The opposite is true for the second scenario, i.e., a short, stout figure. For example, a person who is 160 cm tall, weighs 70 kg, and has a significant amount of body fat. On paper, this weight qualifies for the “up to 80 kg” category. In practice, however, the loads acting on the shoe can be much greater. A higher proportion of passive mass means weaker movement control and poorer force absorption by the body. This is often accompanied by a less effective running technique. In this case, it may be better to choose shoes designed for heavier runners with a sturdier construction and greater cushioning.
Remember, weight is a guideline, not a verdict.
Running Technique
Running technique is equally important. Some runners who weigh 90 kg move very economically. They have smooth hip movement, land on their midfoot, and have a short, dynamic toe-off. This type of running looks effortless, almost like a well-oiled machine.
In this case, a large amount of cushioning under the heel does not offer many benefits. Although their weight would suggest shoes from the “for heavier runners” category, good technique effectively reduces overload. This allows you to run safely and comfortably in models with less foam that provide a more direct feel of the ground.
Running Frequency and Volume
Another factor to consider when choosing the right shoes is regularity. Running regularly five times a week for ten kilometers is different from running twice a week for five kilometers.
In the first case, greater cushioning is recommended because the total stress on your joints will be significantly higher, even at a low weight. The load on your body will be completely different in both cases. Therefore, if you run often, consider shoes with more cushioning than your weight indicates. If you run once or twice a week, consider shoes with less cushioning than your weight indicates.
However, use common sense. A person weighing over 100 kilograms, even if planning two 10km runs per week, should choose shoes with a higher level of cushioning. With this body weight, other shoes simply will not provide adequate support. Additionally, it would be beneficial for this person to lose weight, as excess weight challenges any type of running shoe.
Personal Preferences
Finally, individual preferences are also important. For example, a runner who weighs 70 kilograms, is slim, regularly practices sports, and has not experienced any injuries in 10 years of running may prefer very soft running shoes. There’s nothing wrong with that! A shoe with a much higher level of cushioning than his weight suggests will not usually hurt. It won’t matter if the shoes are intended for runners over 90 kg. They will be the most comfortable for him. At most, the level of cushioning in the running shoes will be slightly underutilized.
There are also, albeit much less frequently, situations where the opposite is true. I know people who prefer shoes with little cushioning or even hard shoes. However, despite their body type suggesting they should choose shoes for runners “over 80 kg,” they feel best in shoes with minimal cushioning.
Final Thoughts
Remember that the descriptions “up to 80 kilograms” and “from 80 kilograms” are very general guidelines. It tells us how much cushioning the shoe model has and is a good place to start. However, when choosing shoes, it is also worth considering your body type, running technique, how regularly you train, and your personal preferences. Only by taking all these factors into account can you determine the right type of cushioned shoe for you.
