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Atoms Kids Model 123 size guide

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Our tool compares official Atoms size charts to find your perfect size. No measuring needed.

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Does the Atoms Kids Model 123 run small or large?

Fit guidance comes from our community and the sizes owners report to us. We do not hold any for the Atoms Kids Model 123 yet. By adding shoes you own you are helping our community extend the coverage. Add your shoes

Atoms has not published a size chart for the Atoms Kids Model 123. What you see above is the brand's general chart, which covers the whole range rather than this model.

Official Atoms Size Chart for Kids Model 123

This chart covers EU 26 to EU 35, which is feet from 14.2 cm to 20.6 cm long.

This is the official brand-wide Atoms size chart. Atoms uses the same chart for the Atoms Kids Model 123 as for its other models.

Source: the manufacturer's size guide
Fetched 2026-09-26 04:03:35

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UK is not available for this shoe yet, so this is EU.

Official Atoms Size Chart for Kids Model 123
Foot Length EU US Big Kids
14.2 - 14.5 cm 26 9K
14.5 - 15.4 cm 27 10K
15.4 - 16.2 cm 28 11K
16.2 - 17.1 cm 29.5 12K
17.1 - 18.0 cm 31 13K
18.0 - 18.8 cm 32 1
18.8 - 19.6 cm 33.5 2
19.6 - 20.6 cm 35 3

Atoms publishes this chart as foot length, so the lengths above are the foot each size fits and we use them as published.

US Big Kids 9K (EU 26) 🇺🇸 US Big Kids 10K (EU 27) 🇺🇸 US Big Kids 11K (EU 28) 🇺🇸 US Big Kids 12K (EU 29.5) 🇺🇸 US Big Kids 13K (EU 31) 🇺🇸 US Big Kids 1 (EU 32) 🇺🇸 US Big Kids 2 (EU 33.5) 🇺🇸 US Big Kids 3 (EU 35) 🇺🇸

Frequently Asked Questions

The Atoms Kids Model 123 runs true to size, so it matches standard sizing.

Your Atoms Kids Model 123 size depends on your foot length and the shoes you currently wear. Use our size finder tool to get a personalized recommendation based on shoes you already own. Alternatively, measure your foot length in cm and use the size chart above to find your Atoms size.

Yes, the Atoms Kids Model 123 runs true to size compared to standard Atoms sizing. Order your normal size.

Use the size chart above to convert between EU, US and UK sizes for Atoms Kids Model 123. Each size shows the corresponding foot length in mm so you can see what the charts say.

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What the badges mean

Official

The chart comes from the brand. We read it from a page the brand publishes and we link that page so you can check it.

Model specific chart

The brand publishes this chart for this shoe. Sizes on it apply to the shoe you are looking at.

Brand-wide chart

The brand uses one chart across its range. We show it when the shoe has no chart of its own.

Crowdsourced

Sizes reported by people who own this shoe. The number beside it tells you how many.

Last updated: 2026-09-26 04:03:35