| Young & Wild Size | UK | US/CA | Europe | Bust (cm) | Underbust (cm) | Bust (inch) | Underbust (inch) |
| XXS | 4 | 00/0 | 30/32 | 74-78 | 63-67 | 29-30.6 | 24.8-26.4 |
| XS | 6 | 0/2 | 32/34 | 79-83 | 68-72 | 31-32.6 | 26.8-28.3 |
| S | 8 | 2/4 | 33/36 | 84-88 | 73-77 | 33-34.6 | 28.6-30.3 |
| M | 10 | 4/6 | 36/38 | 89-93 | 78-82 | 35-36.6 | 30.6-32.3 |
| L | 12 | 6/8 | 38/40 | 94-98 | 83-87 | 37-38.5 | 30.6-32.3 |
| XL | 14 | 8/10 | 40/42 | 99-103 | 89-92 | 39-40.5 | 35-36.1 |