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men's underwear size guide – brand-by-brand chart
Every brand cuts differently – the same size label (S, M, L) doesn't mean the same waist measurement across different manufacturers. Modus Vivendi, C-IN2 and the Italian brands (Bikkembergs, Moschino, Dsquared2) each use their own size charts, so the best way to pick the right size is to measure yourself, not rely on the label. This guide brings together the official size charts for every brand we sell, in one place.
how to measure correctly
For an accurate result, measure without clothes or in thin underwear, using a soft tailor's tape that doesn't press into the skin.
- waist – relax and measure the narrowest part of your waist, without sucking in your stomach
- hips – stand straight with feet together and measure the widest part of your hips
Measurements in the charts are approximate and may vary – if the fabric is stretchy, at the listed measurements size S fits snugly, while size M sits looser.
Modus Vivendi – size chart
Greek brand, generally a slightly narrower cut than the Italian brands.
| US size | EU size | waist |
|---|---|---|
| XS | 44 | 76–80 cm |
| S | 46 | 80–84 cm |
| M | 48 | 84–88 cm |
| L | 50 | 88–92 cm |
| XL | 52 | 92–96 cm |
| 2XL | 54 | 96–100 cm |
See the full C-IN2 collection.
C-IN2 – size chart
New York brand, its size chart differs from European brands – the same label (e.g. M) covers a wider waist range.
| US size | waist | EU size | inches / jeans |
|---|---|---|---|
| XS | 65–70 cm | 42–44 | 26″–27″ |
| S | 71–76 cm | 44–46 | 28″–30″ |
| M | 77–84 cm | 48–50 | 31″–33″ |
| L | 85–92 cm | 50–52 | 34″–36″ |
| XL | 93–100 cm | 54–56 | 38″–40″ |
| 2XL | 101–107 cm | 56–58 | 40″–42″ |
See the full C-IN2 kolekciju.
size chart – Bikkembergs, Moschino i Dsquared2
These three brands share the same size chart.
| US size | EU size | waist | hips |
|---|---|---|---|
| XS | 44 | 76–80 cm | 88–92 cm |
| S | 46 | 80–84 cm | 92–96 cm |
| M | 48 | 84–88 cm | 96–100 cm |
| L | 50 | 88–92 cm | 100–104 cm |
| XL | 52 | 92–96 cm | 104–108 cm |
| 2XL | 54 | 96–100 cm | 108–112 cm |
See the collections: Bikkembergs, Moschino, Dsquared2.
what if you're between two sizes
If your measurement falls exactly between two sizes in the chart, the choice depends on the fabric and your preferred fit: stretchy fabrics (cotton with elastane, modal) can be sized down for a snugger fit, while mesh and microfiber fabrics without elastane are better sized up for comfort.
Check out our full range: men’s undies from all available brands in one place.

