Marena Size Guide
| AGE | UK SHOE SIZE | EU SHOE SIZE | CENTIMETRES (approx.) |
| 9-12 months | 4.5 | 20 | 13cm |
| 12-18 months | 5 | 21 | 13.5cm |
| 2 years | 5.5 | 22 | 14cm |
| 2.5 years | 6 | 23 | 14.5cm |
| 3 years | 7 | 24 | 15cm |
| 3.5 years | 8 | 25 | 15.5cm |
| 4 years | 8.5 | 26 | 16cm |
| 4.5 years | 9 | 27 | 16.5cm |
| 5 years | 10 | 28 | 17cm |
| 5.5 years | 11 | 29 | 17.5cm |
| 6 years | 12 | 30 | 18cm |
| 7 years | 12.5 | 31 | 18.5cm |
| 8 years | 13 | 32 | 19cm |
Marena jelly sandals are made to a standard width fitting (F) and are true to size in terms of length.
