Boatilus Model-Specific Size Guide
Because every Boatilus model has a unique shape and last, each product has its own size range and recommended foot length.
Download our full guide for details on each model and how to measure your child's feet.
BABY BEATLY
| UK | EU | Shoe length (cm) | Recommended foot length (cm) |
|---|---|---|---|
| 3 | 19 | 11.8 | 10.8 - 11.4 |
| 4 | 20 | 12.5 | 11.5 - 12.1 |
| 5 | 21 | 13 | 12 - 12.6 |
| 5.5 | 22 | 13.8 | 12.8 - 13.4 |
| 6 | 23 | 14.1 | 13.1 - 13.7 |
| 7.5 | 24/25 | 15 | 14 - 14.6 |
| 9 | 26/27 | 16.1 | 15.1 - 15.7 |
| 10 | 28/29 | 18 | 17 - 17.6 |
| 12 | 30/31 | 19.4 | 18.4 - 19 |
| 13 | 32/33 | 20.8 | 19.8 - 20.4 |
| 2 | 34/35 | 22.4 | 21.4 - 22 |
Tip: Measure heel-to-toe in cm and choose the closest equal or slightly longer foot length.
BIOTY & BIOTY CHARACTERS
| UK | EU | Shoe length (cm) | Recommended foot length (cm) |
|---|---|---|---|
| 4 | 20 | 12.7 | 12.1 - 12.5 |
| 5 | 21 | 13.5 | 12.9 - 13.3 |
| 5.5 | 22 | 14.0 | 13.4 - 13.8 |
| 6.5 | 23 | 14.7 | 14.1 - 14.5 |
| 7 | 24 | 15.2 | 14.6 - 15 |
| 8 | 25 | 15.9 | 15.3 - 15.7 |
| 9 | 26 | 16.7 | 16.1 - 16.5 |
| 10 | 27 | 17.2 | 16.6 - 17 |
| 11 | 28 | 18.0 | 17.4 - 17.8 |
| 12 | 29 | 18.7 | 18.1 - 18.5 |
| 13 | 30/31 | 19.5 | 18.9 - 19.3 |
| 1 | 32/33 | 20.5 | 19.9 - 20.3 |
| 2 | 34/35 | 21.9 | 21.3 - 21.7 |
Tip: Measure heel-to-toe in cm and choose the closest equal or slightly longer foot length.
CLIPPY
| UK | EU | Shoe length (cm) | Recommended foot length (cm) |
|---|---|---|---|
| 4 | 20 | 12.7 | 12.1 - 12.5 |
| 5 | 21 | 13.5 | 12.9 - 13.3 |
| 6 | 22 | 14.0 | 13.4 - 13.8 |
| 6.5 | 23 | 14.7 | 14.1 - 14.5 |
| 7 | 24 | 15.2 | 14.6 - 15.0 |
| 8 | 25 | 15.9 | 15.3 - 15.7 |
| 9 | 26 | 16.7 | 16.1 - 16.5 |
Tip: Measure heel-to-toe in cm and choose the closest equal or slightly longer foot length.
CLOGGY / BOSTY VEG
| UK | EU | Shoe length (cm) | Recommended foot length (cm) |
|---|---|---|---|
| 5 | 20/21 | 12.8 | 12.2 - 12.6 |
| 6 | 22/23 | 13.8 | 13.2 - 13.6 |
| 7 | 24/25 | 15.2 | 14.6 - 15 |
| 8.5 | 26/27 | 16.7 | 16.1 - 16.5 |
| 10 | 28/29 | 18 | 17.4 - 17.8 |
| 12 | 30/31 | 19 | 18.4 - 18.8 |
| 13 | 32/33 | 20.5 | 19.9 - 20.3 |
| 2 | 34/35 | 22 | 21.4 - 21.8 |
Tip: Measure heel-to-toe in cm and choose the closest equal or slightly longer foot length.
EASY VEG
| UK | EU | Shoe length (cm) | Recommended foot length (cm) |
|---|---|---|---|
| 6 | 22/23 | 14 | 13.4 - 13.8 |
| 7 | 24/25 | 15.5 | 14.9 - 15.3 |
| 8.5 | 26/27 | 16.5 | 15.9 - 16.3 |
| 10 | 28/29 | 18 | 17.4 - 18.8 |
| 12 | 30/31 | 19 | 18.4 - 18.8 |
| 13 | 32/33 | 20 | 19.4 - 19.8 |
| 2 | 34/35 | 20.6 | 20 - 20.4 |
Tip: Measure heel-to-toe in cm and choose the closest equal or slightly longer length.
NAUTIC
| UK | EU | Shoe length (cm) | Recommended foot length (cm) |
|---|---|---|---|
| 2.5 | 18 | 10.7 | 9.7 - 10.3 |
| 3 | 19 | 11.3 | 10.3 - 10.9 |
| 3.5 | 20 | 12.5 | 11.5 - 12.1 |
| 4.5 | 21 | 13.2 | 12.2 - 12.8 |
| 5.5 | 22 | 13.5 | 12.5 - 13.1 |
| 6 | 23 | 13.8 | 12.8 - 13.4 |
| 7 | 24 | 14.9 | 13.9 - 14.5 |
| 7.5 | 25 | 15.6 | 14.6 - 15.2 |
| 8.5 | 26 | 16.2 | 15.2 - 15.8 |
| 9 | 27 | 17.0 | 16 - 16.6 |
| 10 | 28 | 17.5 | 16.5 - 17.1 |
| 11 | 29 | 18.0 | 17 - 17.6 |
| 11.5 | 30 | 18.7 | 17.7 - 18.3 |
| 12.5 | 31 | 19.5 | 18.5 - 19.1 |
| 13 | 32 | 20.1 | 19 - 19.6 |
| 1 | 33 | 20.8 | |
| 2 | 34 | 21.4 | |
| 3 | 35 | 22.0 | |
| 3 | 36 | 23.0 | 22 - 22.6 |
| 4 | 37 | 23.7 | 22.7 - 23.3 |
| 5 | 38 | 24.3 | |
| 6 | 39 | 25.0 | 23.3 - 23.9 |
| 6.5 | 40 | 25.7 | 24.7 - 25.3 |
Tip: Measure heel-to-toe in cm and choose the closest equal or slightly longer foot length.
ROCKSY / IRKY VEG
| UK | EU | Shoe length (cm) | Recommended foot length (cm) |
|---|---|---|---|
| 7 | 24 | 14.7 | 14.1 - 14.5 |
| 8 | 25 | 15.9 | 15.3.- 15.7 |
| 9 | 26 | 16.4 | 15.8 - 16.2 |
| 10 | 27 | 17 | 16.4 - 16.8 |
| 11 | 28 | 17.5 | 16.9 - 17.3 |
| 12 | 29 | 18.1 | 17.5 - 17.9 |
| 12.5/13.5 | 30/31 | 18.8 | 18.2 - 18.6 |
| 1/1.5 | 32/33 | 20.2 | 19.6 - 20 |
| 2/2.5 | 34/35 | 21.8 | 21.2 - 21.6 |
Tip: Measure heel-to-toe in cm and choose the closest equal or slightly longer length.
SEALS
| UK | EU | Shoe length (cm) | Recommended foot length (cm) |
|---|---|---|---|
| 6 | 22 | 14 | 13.4 - 13.8 |
| 7 | 24 | 15.5 | 14.9 - 15.3 |
| 8.5 | 26 | 16.5 | 15.9 - 16.3 |
| 10 | 28 | 18 | 17.4 - 18.8 |
| 12 | 30 | 19 | 18.4 - 18.8 |
| 13 | 32 | 20 | 19.4 - 19.8 |
| 2 | 34 | 20.6 | 20 - 20.4 |
| 2.5 | 35 | 22 | 21.4 - 21.8 |
| 3 | 36 | 23 | 22 - 22.6 |
| 4 | 37 | 23.7 | 22.7 - 23.3 |
| 5 | 38 | 24.3 | 23.3 - 23.9 |
| 6 | 39 | 25 | 24 - 24.6 |
| 6.5 | 40 | 25.7 | 24.7 - 25.3 |
Tip: Measure heel-to-toe in cm and choose the closest equal or slightly longer length.