Wearing a non padded bra, use a tape measure placed under the bust to measure your size in cms. Ensure the tape measure is level and parallel and note your measurement at the tightest point.
Reposition the tape measure at the back of your bra and measure the circumference of your bust. Bring the tape measure around to the front of your bust. Keep the tape measure loose and make a note of your measurement.
On the Size Guide, find your Under Bust measurement on the top row of the table, slide down in the same column to the cup section and find your On Bust measurement. This will provide you with your I.D Sarrieri size.
| EU | 70 (68-72cm) | 75 (73-77cm) | 80 (78-82cm) | 85 (83-87cm) | 90 (88-92cm) |
| UK/USA/IT | 32 | 34 | 36 | 38 | 40 |
| FR | 85 | 90 | 95 | 100 | 105 |
| AU | 10 | 12 | 14 | 16 | 18 |
| AA | 81 (80-82cm) | 86 (85-87cm) | 91 (90-92cm) | 96 (95-97cm) | 101 (100-102cm) |
| A | 83 (82-84cm) | 88 (87-89cm) | 93 (92-94cm) | 98 (97-99cm) | 103 (102-104cm) |
| B | 85 (84-86cm) | 90 (89-91cm) | 95 (94-96cm) | 100 (99-101cm) | 105 (104-106cm) |
| C | 87 (86-88cm) | 92 (91-93cm) | 97 (96-98cm) | 102 (101-103cm) | 107 (106-108cm) |
| D | 89 (88-90cm) | 94 (93-95cm) | 99 (98-100cm) | 104 (103-105cm) | 109 (108-110cm) |
| DD | 91 (90-92cm) | 96 (95-97cm) | 101 (100-102cm) | 106 (105-107cm) | 111 (110-112cm) |
| International | XS | S | M | L | XL |
| UK/AU | 6-8 | 8-10 | 10-12 | 12-14 | 1416 |
| USA | 2-4 | 4-6 | 6-8 | 8-10 | 10-12 |
| IT | 38-40 | 40-42 | 42-44 | 44-46 | 46-48 |
| FR | 36-38 | 38-40 | 40-42 | 42-44 | 44-46 |
| On bust | 83-88cm | 88-93cm | 93-98cm | 98-103cm | 103-108cm |
| Waist | 59-63cm | 64-68cm | 69-73cm | 74-79cm | 80-84cm |
| Hips (Small hip) | 85-89cm | 90-94cm | 95-99cm | 100-104cm | 105-109cm |
