Chaco Big Kids' ZX/1 EcoTread Sandal size guide
Pebble Greenery
Our tool compares official Chaco size charts to find your perfect size. No measuring needed.
Does the Chaco Big Kids' ZX/1 EcoTread Sandal run small or large?
Fit guidance comes from our community and the sizes owners report to us. We do not hold any for the Chaco Big Kids' ZX/1 EcoTread Sandal yet. By adding shoes you own you are helping our community extend the coverage. Add your shoes
Chaco has not published a size chart for the Chaco Big Kids' ZX/1 EcoTread Sandal. What you see above is the brand's general chart, which covers the whole range rather than this model.
Official Chaco Size Chart for Big Kids' ZX/1 EcoTread Sandal
This chart covers EU 28 to EU 37, which is feet from 15.7 cm to 25 cm long.
This is the official brand-wide Chaco size chart. Chaco uses the same chart for the Chaco Big Kids' ZX/1 EcoTread Sandal as for its other models.
Source:
the manufacturer's size guide
Fetched 2026-09-14 01:57:36
| Foot Length | UK | EU | US Big Kids |
|---|---|---|---|
| 15.7 - 16.0 cm | 9 | 28 | 10 |
| 16.0 - 16.5 cm | 9.5 | 28.5 | 10.5 |
| 16.5 - 17.0 cm | 10 | 29 | 11 |
| 17.0 - 17.5 cm | 10.5 | 29.5 | 11.5 |
| 17.5 - 18.0 cm | 11 | 30 | 12 |
| 18.0 - 18.5 cm | 11.5 | 30.5 | 12.5 |
| 18.5 - 19.0 cm | 12 | 31 | 13 |
| 19.0 - 19.5 cm | 12.5 | 31.5 | 13.5 |
| 19.5 - 20.0 cm | 13 | 32 | 1 |
| 20.0 - 20.5 cm | 13.5 | 32.5 | 1.5 |
| 20.5 - 21.0 cm | 1 | 33 | 2 |
| 21.0 - 21.5 cm | 1.5 | 33.5 | 2.5 |
| 21.5 - 22.0 cm | 2 | 34 | 3 |
| 22.0 - 22.5 cm | 2.5 | 34.5 | 3.5 |
| 22.5 - 23.0 cm | 3 | 35 | 4 |
| 23.0 - 23.5 cm | 3.5 | 35.5 | 4.5 |
| 23.5 - 24.0 cm | 4 | 36 | 5 |
| 24.0 - 24.5 cm | 4.5 | 36.5 | 5.5 |
| 24.5 - 25.0 cm | 5 | 37 | 6 |
Chaco publishes this chart as foot length, so the lengths above are the foot each size fits and we use them as published.
Frequently Asked Questions
Last updated: 2026-09-14 01:57:36