Size Guide
Little feet grow quickly, and finding the right size can sometimes feel like a bit of guesswork.
Mollie Kids carries Biomecanics, Garvalin and Pablosky, and each brand has its own fit and sizing guidance. This page brings everything together in one place to make choosing the right pair a little easier.
Start with a quick measurement, then open the relevant brand guide below for the size chart and any style-specific fit notes.


How to Measure at Home
Measure the foot
Have your child stand with their heel gently against a wall. Measure from the wall to the tip of the longest toe in centimetres.
Measure both feet
Use the larger measurement when choosing a size.
Check the brand sizing
Pablosky: allow around 0.8–1.2 cm of growing room.
Garvalin & Biomecanics: no need to add extra length — the recommended sizing already includes room for the foot.Find the size
Compare the measurement with the relevant brand chart.


When the Shoes Arrive
- Try both shoes on with their usual socks and let your child walk around indoors on a clean surface.
- A good fit should feel secure, with room for the toes to move naturally.
Too tight: toes feel restricted or the shoe presses across the foot.
Just right: heel feels secure and your child can walk comfortably.
Too loose: the foot slides around or the heel lifts.
Helpful Tips
Try later in the day — feet can be slightly fuller by the afternoon.
Don’t size up too much — extra room can make shoes less comfortable or stable.
Check regularly — growing feet can change quickly.
| Child’s Age | How Often to Check |
|---|---|
| 0–1.5 years | Around every 2 months |
| 1.5–2.5 years | Around every 3 months |
| 2.5–4 years | Around every 4 months |
| 4–6 years | Around every 6 months |
| 7–9 years | Around every 3-4 months |
| 10+ years | Around every 4-6 months, depending on growth |
Choose Your Brand
Biomecanics
Biomecanics Size Guide
Biomecanics follows standard children’s sizing, but fit can vary slightly between styles.
The sizing already includes the intended room for the foot, so you don’t need to add extra length.
For example:
- Foot length 10.8 cm → EU 18
- Foot length 12.2 cm → EU 20
Fit notes
- Canvas: may feel slightly roomier.
- Biohome: may also have a slightly wider fit.
- Biogateo: some styles include a foot outline on the insole. Your child’s foot should sit comfortably within the outline.

Garvalin
Garvalin Size Guide
Garvalin sizing also already includes the intended room for the foot, so you don’t need to add extra length.
For example:
- Foot length 10.8 cm → EU 18
- Foot length 12 cm → EU 20
Fit notes
- Canvas: may feel slightly roomier.
- Beach sandals: some styles may run a little large. Check the individual product page for any sizing notes.

Pablosky
Pablosky Size Guide
Pablosky sizing includes both length and width guidance.
Allow around 0.8–1.2 cm of growing room between the longest toe and the front of the shoe.
Fit guide
- Less than 0.5 cm — too small
- 0.5–0.7 cm — nearly time to size up
- 0.8–1.2 cm — just right
- More than 1.2 cm — too big
Pablosky Size Guide
| Insole Length (cm) | EU | UK | US | Medium Fit Width (cm) | Wide Fit Width (cm) |
|---|---|---|---|---|---|
| 10 | 16 | 0.5 | 1 | 5.3 | 5.3 |
| 10.7 | 17 | 1.5 | 2 | 5.45 | 5.45 |
| 11.3 | 18 | 2 | 2.5 | 5.6 | 5.6 |
| 12 | 19 | 3 | 3.5 | 5.75 | 5.75 |
| 12.7 | 20 | 3.5 | 4.5 | 5.85 | 5.85 |
| 13.3 | 21 | 4.5 | 5 | 6 | 6 |
| 14 | 22 | 5.5 | 6 | 6.1 | 6.15 |
| 14.7 | 23 | 6 | 6.5 | 6.2 | 6.3 |
| 15.3 | 24 | 7 | 7.5 | 6.25 | 6.45 |
| 16 | 25 | 7.5 | 8 | 6.3 | 6.6 |
| 16.6 | 26 | 8.5 | 9.5 | 6.45 | 6.75 |
| 17.3 | 27 | 9 | 10.5 | 6.6 | 6.9 |
| 18 | 28 | 10 | 11 | 6.75 | 7.05 |
| 18.6 | 29 | 11 | 12 | 6.9 | 7.2 |
| 19.3 | 30 | 11.5 | 12.5 | 7 | 7.35 |
| 20 | 31 | 12.5 | 13 | 7.1 | 7.5 |
| 20.6 | 32 | 13 | 1.5 | 7.2 | 7.65 |
| 21.3 | 33 | 1 | 2 | 7.35 | 7.8 |
| 22 | 34 | 2 | 3 | 7.5 | 7.95 |
| 22.6 | 35 | 2.5 | 3.5 | 7.65 | 8.1 |
| 23.3 | 36 | 3.5 | 4.5 | 7.8 | 8.25 |
| 24 | 37 | 4 | 5 | 7.9 | 8.4 |
| 24.6 | 38 | 5 | 6 | 8 | 8.55 |
| 25.3 | 39 | 6 | 6.5 | 8.1 | 8.7 |
| 26 | 40 | 6.5 | 7 | 8.2 | 8.85 |
| 26.6 | 41 | 7 | 8 | 8.3 | 9 |
| 27.3 | 42 | 7.5 | 8.5 |


