
Let’s be honest: we’ve all been there. In one brand, a size M fits perfectly. In another, you’re squeezing into a size L. The reason? There’s no global standard for clothing sizes. Each brand creates its own sizing system.
Why sizes differ between brands: what are sizes based on?
- Target audience: Brands design for their typical customer: athletic, curvy, tall, petite, mature, young, etc.
- Average body shapes: Body shapes differ by region (see below). And cultural ideals around beauty play a role too. Southern European styles often lean toward body-hugging cuts, while North American brands tend to prioritize comfort and ease.
- Design philosophy: Some brands mainly offer a slim fit, others a relaxed fit.
- Pattern drafting methods: Drafting systems (e.g., Müller & Sohn, Aldrich, US industry blocks) produce different shapes even with the same measurements.
All of this helps brands to be very consistent across their own range of clothes. But it means that based on target audience, region, body shape etc a size "L" will be very different from brand to brand.
EU vs US sizing – are European sizes smaller than US sizes?
Yes, EU sizes generally run smaller than US sizes. This often leads to EU sizes not fitting in the US — and vice versa. On average, Americans wear noticeably larger sizes than people in Europe. Weight, body proportions and height are significantly different in Europe vs. the US. US brands cater to the US averages with larger size charts and looser fits. In Europe, patterns are based on the smaller local body proportions and tend to be drafted closer to the body.
Why do Americans wear larger sizes?
Weight & BMI
In the US, the share of people with overweight is significantly higher than in many European countries (Global Obesity Observatory). According to a new study based on 3D body measurements, 39.8% of US women are obese (in line with official US data), compared to 15.8% in Germany. In France, only 10% of women are obese. In Italy, 11% of women are obese.
Body shapes: US compared to Germany
- Higher average weight and waist circumference in US women lead to a more apple‑shaped or full‑hourglass distribution on average. German women tend to have straighter waists and proportionally wider hips, which aligns more with rectangle or pear‑leaning shapes. (Based on body measurements).
- German women are also taller and have longer torsos compared to women in the US.
- The average US cup size for women is D, while in Germany the average cup size is B-C.
Market size & inclusivity: Why don't European brands offer more plus sizes?
The US has 4x the population of Germany and a much larger share of women wear plus sizes.
In the US, extended sizes aren’t a niche—they’re a major part of the mainstream market. The US alone accounts for 31% of the global Plus Size Market. That creates a big, profitable market for brands to offer extended sizing.
Germany on the other hand (the largest Euopean country) accounts for only 7% of the market. In Germany, very large sizes represent a niche. Most brands focus on the mainstream, because that's where the money is. That's why there are some brands for extended sizing, but it is not as common as in the US.
Different bodies, different fits – a global snapshot
Body shapes and available cuts vary significantly by region:
- In Scandinavia and the Netherlands, people tend to be taller on average — clothing is often drafted with longer proportions.
- In Latin America, the focus is more often on curvier cuts, especially around the hips.
- In many Asian countries, brands cater to more petite body shapes, with shorter inseams and sleeve lengths.
That's why we use professional data at naeyen
In many places, specialized companies have been collecting body measurements for decades. Hohenstein, for example, has measured Germans of all ages for over 70 years. These measurements go beyond just height and weight; they also take into account posture and body shape. The goal? Creating accurate sizing charts that help brands design clothing that truly fits.
At naeyen, like other professional pattern providers, we base our patterns on this kind of data. And what we’ve seen is clear: height, proportions, even posture can vary drastically depending on the country. For example, the average body measurements for women in the US are quite different from those in Germany or Italy.
Yes, sizes vary by brand
All of this is a reminder of how wonderfully diverse bodies are—and why it’s so important to go by measurement charts rather than relying on size labels when sewing.
Because in the end, your body is one of a kind—your clothing should be too.
Note: The all explanations refer to how grading and sizing systems differ. Designers work with different base measurements, which influence the final size labels. Bodies themselves are wonderful and diverse.