Authenticity
A refined guide to international sizing.
Designed to help you choose the perfect fit across collections, silhouettes, and designers—because true luxury is felt in the details.
Size Guide
Women's Dresses and Suits
| UK | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 |
| US | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 |
| Switzerland / Italy | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 |
| France / Germany / Scandinavia | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 |
| Portugal / Spain | 36 | 38 | 40 | 42 | 44 | 46 | 48 | - |
Women's Shoes
| UK | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 |
|---|---|---|---|---|---|---|---|
| US | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 |
| EU | 36.5 | 37 | 37.5 | 38.5 | 39 | 39.5 | 40.5 |
Women's Sweaters and Blouses
| UK | 36 | 38 | 40 | 42 | 44 | 46 |
|---|---|---|---|---|---|---|
| US | 34 | 36 | 38 | 40 | 42 | 44 |
| EU | 42 | 44 | 46 | 48 | 50 | 52 |
Men's Suits and Coats
| UK / US | 36 | 38 | 40 | 42 | 44 | 46 | 48 |
|---|---|---|---|---|---|---|---|
| EU | 46 | 48 | 50/52 | 54 | 56 | 58/60 | 62 |
Men's Shirts (Collar Size)
| UK / US | 14 | 14.5 | 15 | 15.5 | 16 | 16.5 | 17 |
|---|---|---|---|---|---|---|---|
| EU | 35 | 36/37 | 38 | 39/40 | 41 | 42/43 | 44 |
Men's Shoes
| UK | 7 | 7.5 | 8 | 9 | 10 | 11 |
|---|---|---|---|---|---|---|
| US | 7.5 | 8 | 8.5 | 9.5 | 10.5 | 11.5 |
| EU | 40.5 | 41 | 42 | 43 | 44.5 | 46 |
Size conversions may vary slightly depending on brand and manufacturer.