Find their size.
Measure once, order right. (Spoiler: when in doubt, size up.)
Hoppi size chart
Hoppis fit by foot length, not age — every kid grows differently. Measure heel-to-toe and match to the chart.
| Size | Foot length | Approximate age |
|---|---|---|
| XS | 3.7 – 4.3 in (9.5 – 11 cm) | 0 – 6 months |
| S | 4.3 – 4.9 in (11 – 12.5 cm) | 6 – 12 months |
| M | 4.9 – 5.5 in (12.5 – 14 cm) | 12 – 18 months |
| L | 5.5 – 6.1 in (14 – 15.5 cm) | 18 – 24 months |
| XL | 6.1 – 6.7 in (15.5 – 17 cm) | 24 – 30+ months |
💡 Between sizes? Size up.
The ribbed elastic ankle cuff stretches to fit, so a slightly larger Hoppi will still stay on. And tiny feet grow fast — you'll get more wear out of the bigger size.
How to measure
- Place your kid's foot flat on a piece of paper (kid standing, weight on the foot).
- Mark the back of the heel and the tip of the longest toe.
- Measure between the two marks in inches or centimeters.
- Match the longer foot to the size chart above. If between sizes — size up.
Still not sure?
Email us at support@hellohoppi.com with your kid's foot length and age, and we'll recommend a size. And remember — our 30-day return is no-questions, so you can always swap.