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About Natural World: Natural World Eco is a Spanish brand based in Arnedo, La Rioja. Shoes are sized in EU. Their general chart lists one centimetre figure per size, but on a style page that figure is the insole length, not your foot, and it changes from model to model. The charts further down are Natural World Eco’s own size tables. Which sizes we can offer comes and goes with stock.
This is Natural World Eco’s own children’s chart. Their size page asks you to measure your foot and compare it with the centimetre column, though on a style page that figure is the insole length and it can differ from this table. Which sizes we can offer comes and goes with stock.
| UK | EU | Foot cm |
|---|---|---|
| 5 | 21 | 12.7 |
| 5.5 | 22 | 13.5 |
| 6.5 | 23 | 14.1 |
| 7 | 24 | 14.7 |
| 7.5 | 25 | 15.2 |
| 8.5 | 26 | 16.1 |
| 9 | 27 | 16.7 |
| 10 | 28 | 17.4 |
| 11 | 29 | 18.1 |
| 12 | 30 | 18.7 |
| 12.5 | 31 | 19.4 |
| 13 | 32 | 20.2 |
| 1 | 33 | 20.8 |
| 2 | 34 | 21.4 |
Source: naturalworldeco-shop.com size guide. UK sizes added from our own size range
This is Natural World Eco’s own women’s chart. Their size page asks you to measure your foot and compare it with the centimetre column, though on a style page that figure is the insole length and it can differ from this table. Which sizes we can offer comes and goes with stock.
| UK | EU | Foot cm |
|---|---|---|
| 2.5 | 35 | 22.2 |
| 3 | 36 | 22.9 |
| 4 | 37 | 23.5 |
| 5 | 38 | 24.2 |
| 6 | 39 | 24.9 |
| 6.5 | 40 | 25.5 |
| 7 | 41 | 26.3 |
| 8 | 42 | 27.2 |
Source: naturalworldeco-shop.com size guide. UK sizes added from our own size range
This is Natural World Eco’s own men’s chart. Their size page asks you to measure your foot and compare it with the centimetre column, though on a style page that figure is the insole length and it can differ from this table. Which sizes we can offer comes and goes with stock.
| UK | EU | Foot cm |
|---|---|---|
| 6 | 39 | 25.6 |
| 6.5 | 40 | 26.3 |
| 7 | 41 | 27.1 |
| 8 | 42 | 27.7 |
| 9 | 43 | 28.4 |
| 9.5 | 44 | 29.2 |
| 10 | 45 | 29.8 |
| 11 | 46 | 30.4 |
Source: naturalworldeco-shop.com size guide. UK sizes added from our own size range
Only if you compare like with like. The centimetre on a style page is the insole, not your foot. Two styles in the same EU size can have different insole lengths, so check the table on that model.
The main size page says to measure your foot and compare it with the table. The style pages then say those figures are insole length, not foot length. When the two disagree, use the style page.
Organic cotton styles can be washed in cold water, 30°C maximum, and must be air dried. Natural dyes may fade on the first wash. Suede styles should not be washed: a slightly damp cloth, then air dry. They do not tell you to tumble dry them.
There is no published rule. Match the insole of a shoe that already fits, and if you fall between two Natural World lengths we would try the longer insole.
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