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 sizeEU sizewaist
XS4476–80 cm
S4680–84 cm
M4884–88 cm
L5088–92 cm
XL5292–96 cm
2XL5496–100 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 sizewaistEU sizeinches / jeans
XS65–70 cm42–4426″–27″
S71–76 cm44–4628″–30″
M77–84 cm48–5031″–33″
L85–92 cm50–5234″–36″
XL93–100 cm54–5638″–40″
2XL101–107 cm56–5840″–42″

See the full C-IN2 kolekciju.

size chart – Bikkembergs, Moschino i Dsquared2

These three brands share the same size chart.

US sizeEU sizewaisthips
XS4476–80 cm88–92 cm
S4680–84 cm92–96 cm
M4884–88 cm96–100 cm
L5088–92 cm100–104 cm
XL5292–96 cm104–108 cm
2XL5496–100 cm108–112 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.