KISSY KISSY baby sizes 0 - 24 month
| Approximate age | Child's weight |
| Premature | Up to 2.70 kg |
| Newborn | Up to 4.50 kg |
| 0-3 month | 5.0 kg |
| 3-6 month | 5.40-6.80 kg |
| 9 month | 7.25-8.60 kg |
| 9-12 month | 9.10-10.40 kg |
| 12-18 month | 10.90-12.25 kg |
| 18-24 month | 12.70-13.60 kg |
KISSY KISSY hat sizes 0 - 12 month
| Approximate age | Kissy Kissy sizes |
| Premature | PR |
| Newborn | NB |
| 0-3 / 3-6 month | SM / GS / BS / Small |
| 6-9 month | MD / GM / BM / Medium |
| 9-18 month | LG / GL / BL / Large |