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Dior Sneaker B30 Countdown size guide

Maille technique blanche et tissu technique blanc

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

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One person owns this shoe Most common sizes: FR 43

Does the Dior Sneaker B30 Countdown run small or large?

1 owners of the Dior Sneaker B30 Countdown have reported their size so far, including EU 43. We hold off on fit guidance until enough have reported for it to mean something.

Dior has not published a size chart for the Dior Sneaker B30 Countdown. What you see above is the brand's general chart, which covers the whole range rather than this model.

Official Dior Size Chart for Sneaker B30 Countdown

This chart covers FR 35 to FR 50, which is feet from 21.9 cm to 32.9 cm long.

This is the official brand-wide Dior size chart. Dior uses the same chart for the Dior Sneaker B30 Countdown as for its other models.

Source: the manufacturer's size guide
Fetched 2026-10-26 12:51:15

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Official Dior Size Chart for Sneaker B30 Countdown
Foot Length FR IT
21.9 - 22.2 cm 35 35
22.2 - 22.6 cm 35.5 35.5
22.6 - 22.9 cm 36 36
22.9 - 23.3 cm 36.5 36.5
23.3 - 23.7 cm 37 37
23.7 - 24.0 cm 37.5 37.5
24.0 - 24.4 cm 38 38
24.4 - 24.7 cm 38.5 38.5
24.7 - 25.1 cm 39 39
25.1 - 25.4 cm 39.5 39.5
25.4 - 25.8 cm 40 40
25.8 - 26.1 cm 40.5 40.5
26.1 - 26.5 cm 41 41
26.5 - 26.8 cm 41.5 41.5
26.8 - 27.2 cm 42 42
27.2 - 27.6 cm 42.5 42.5
27.6 - 27.9 cm 43 43
27.9 - 28.3 cm 43.5 43.5
28.3 - 28.6 cm 44 44
28.6 - 29.0 cm 44.5 44.5
29.0 - 29.3 cm 45 45
29.3 - 29.7 cm 45.5 45.5
29.7 - 30.0 cm 46 46
30.0 - 30.4 cm 46.5 46.5
30.4 - 30.8 cm 47 47
30.8 - 31.1 cm 47.5 47.5
31.1 - 31.5 cm 48 48
31.5 - 31.8 cm 48.5 48.5
31.8 - 32.2 cm 49 49
32.2 - 32.5 cm 49.5 49.5
32.5 - 32.9 cm 50 50

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

IT 35 🇫🇷 IT 36 🇫🇷 IT 37 🇫🇷 IT 38 🇫🇷 IT 39 🇫🇷 IT 39.5 🇫🇷 IT 40 🇫🇷 IT 40.5 🇫🇷 IT 41 🇫🇷 IT 41.5 🇫🇷 IT 42 🇫🇷 IT 42.5 🇫🇷 IT 43 🇫🇷 IT 43.5 🇫🇷 IT 44 🇫🇷 IT 44.5 🇫🇷 IT 45 🇫🇷 IT 45.5 🇫🇷 IT 46 🇫🇷 IT 47 🇫🇷 IT 48 🇫🇷

Frequently Asked Questions

The Dior Sneaker B30 Countdown runs true to size, so it matches standard sizing.

Your Dior Sneaker B30 Countdown 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 Dior size.

Yes, the Dior Sneaker B30 Countdown runs true to size compared to standard Dior sizing. Order your normal size.

Use the size chart above to convert between EU, US and UK sizes for Dior Sneaker B30 Countdown. 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: 2026-10-26 12:51:15