Billie Size Guide
| Dress Size | Half Chest | Body Length | Sleeve Length | |
| XS | 8 | 57cm | 54cm | 46cm |
| Small | 10 | 60cm | 57cm | 47.5cm |
| Medium | 12 | 63cm | 59cm | 49cm |
| Large | 14 | 66cm | 61cm | 50.5cm |
| X Large | 16 | 69cm | 63cm | 52cm |
| 2XL | 18 | 73cm | 65cm | 52cm |
| Dress Size | Half Chest | Body Length | Sleeve Length | |
| XS | 8 | 57cm | 54cm | 46cm |
| Small | 10 | 60cm | 57cm | 47.5cm |
| Medium | 12 | 63cm | 59cm | 49cm |
| Large | 14 | 66cm | 61cm | 50.5cm |
| X Large | 16 | 69cm | 63cm | 52cm |
| 2XL | 18 | 73cm | 65cm | 52cm |