Do Adidas Run Big Or Small Compared To Nike

Do Adidas Run Big Or Small Compared To Nike?

When it comes to buying shoes, one of the most important things to consider is the size. You want your shoes to be comfortable and fit perfectly. However, sometimes it can be difficult to determine the right size, especially when it comes to athletic shoes like Adidas and Nike. In this article, we’ll explore whether Adidas runs big or small compared to Nike and help you make an informed decision.

Adidas vs. Nike Sizing

Before we can answer the question about whether Adidas runs big or small compared to Nike, we need to understand the sizing differences between the two brands. While both Adidas and Nike use standard US shoe sizes, these sizes may vary slightly between the two brands.

Adidas shoes tend to fit true to size, which means that they are generally consistent with the size chart. However, some Adidas shoes, especially those with Primeknit uppers, may run slightly large, so you might want to consider going half a size down. On the other hand, Adidas shoes with leather or synthetic uppers are likely to fit more snugly and may require you to go half a size up.

Nike shoes, on the other hand, typically run smaller than Adidas shoes. This means that you may have to go half a size up when purchasing Nike shoes. This is particularly true for Nike Air Max sneakers, which often fit snugly around the toe box and may cause discomfort if you choose the wrong size.

It’s worth noting that this is a generalization, and the sizing will vary depending on the specific shoe model. Therefore, it’s always a good idea to try on a pair of shoes to determine the best fit, regardless of the brand.

Why Does Sizing Vary Between Adidas and Nike?

The reason for the sizing differences between Adidas and Nike can be attributed to several factors. Firstly, the way the shoes are designed can affect the fit. For example, Nike Air Max sneakers have a distinctive shape that can make them feel tighter around the toe box.

Secondly, the materials used in the shoe’s construction can also affect the fit. Adidas shoes with Primeknit uppers are known to have a looser fit than those with leather or synthetic uppers. Similarly, Nike shoes made with Flyknit technology will have a different fit than those with leather or mesh uppers.

Finally, each brand has its own manufacturing processes and quality standards that can affect the sizing. For example, Adidas shoes are often made with a wider toe box than Nike shoes, which can affect how they fit.

How to Choose the Right Size

Choosing the right size of athletic shoes can be challenging, especially if you’re shopping online. However, there are a few things you can do to ensure that you get the right fit.

Firstly, measure your foot to determine your exact size. This will give you a good starting point when shopping for shoes. You can use a tape measure or a foot measuring device to get an accurate measurement.

Secondly, read reviews of the shoes you’re interested in purchasing. Other customers will often leave comments about how the shoes fit, which can be helpful when making a decision.

Thirdly, try on shoes in-store whenever possible. This will give you the best idea of how they fit and whether you need to go up or down a size.

Finally, remember that different shoe models can fit differently, even within the same brand. Therefore, it’s always a good idea to try on multiple pairs of shoes to find the right fit.


So, do Adidas shoes run big or small compared to Nike? While Adidas shoes tend to fit true to size, some models may run slightly larger, while Nike shoes typically run smaller. However, the sizing differences between the two brands will vary depending on the shoe model and the materials used in construction.

Ultimately, the best way to ensure a good fit is to measure your foot, read reviews, and try on shoes whenever possible. By following these tips, you’ll be able to find the perfect pair of Adidas or Nike shoes that fit comfortably and allow you to perform at your best.