Wearing M in one brand and L in another does not mean your body has changed. It means that each manufacturer defines its ranges, proportions, and construction.
Brief answer: compare your current measurements with the specific chart for each brand and type of garment. Do not transfer a letter from a previous purchase. Check waist, hip, and torso, as well as compression and coverage.
The letter is not a measurement
XS, S, M, or L are names for ranges created by the brand. There is no single standard that requires all brands to use the same measurements in centimeters.
One chart may prioritize waist, and another may offer different hip ranges. Maxi hip or hourglass lines can change proportions within the same brand.
Garment type changes the comparison
A waist cincher focuses on the torso; shorts must also match the hip and thigh; a bodysuit with integrated bust adds bust and torso.
Do not automatically use the waist cincher chart for a full-body shapewear, even if it is the same brand.
Compression does not correct a chart
If you change compression, re-consult the range. Do not size down to replicate the firmness of another garment.
How to compare two brands
- Take waist and hip measurements on the same day.
- Add torso, bust, or thigh if applicable.
- Open the official chart for model A.
- Note the resulting size.
- Repeat with the chart for model B.
- Review coverage and compression.
- If measurements fall into different rows, seek advice.
The Linda CURVES size guide organizes charts by brand. The tool is a guide; the product description and current evidence are still mandatory.
Example without making it a rule
Imagine a waist falls into M for two brands, but the hip falls into L in one and XL in another. The final letter may change due to the hip range and the garment's coverage.
Do not use this example to choose without measuring. It only demonstrates why the previous size does not transfer.
What to do if you are between sizes
Re-measure, confirm the unit, and consult the brand's policy. Consider which area the model covers and do not choose the smaller size merely for visual effect.
Share product, waist, hip, and torso with customer support. Postpartum or post-operative decisions should be coordinated with a professional.
Why you should re-measure yourself
Measurements can vary, and brands update their charts. Measure yourself before a new purchase, after body changes, or when your previous shapewear no longer feels the same.
Common mistakes
- Ordering the same letter size for all brands.
- Directly converting jeans size.
- Confusing inches and centimeters.
- Using a generic chart without a source.
- Choosing solely by waist for a garment that covers the hips.
You can explore brands from all shapewear, but confirm the chart for the chosen product.
Frequently asked questions
Why am I XL in one brand and L in another?
Because their ranges and proportions are different. The letter is not a universal measurement.
Does the size change between a bodysuit and a waist cincher from the same brand?
It may change or require other measurements. Consult the specific chart.
Can I choose by pant size?
It can guide when the brand offers an equivalency, but direct waist and hip measurements are more informative.
Editorial sources
- Official charts documented in the Linda CURVES calculator, verified on August 26, 2026.
- MariaE USA, size guide, valid only for their brand.
