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Brooks Addiction GTS 15 size guide

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

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2 people own this shoe Most common sizes: EU 44.5, UK 10.5

Does the Brooks Addiction GTS 15 run small or large?

2 owners of the Brooks Addiction GTS 15 have reported their size so far, including EU 44.5. We hold off on fit guidance until enough have reported for it to mean something.

Brooks has not published a size chart for the Brooks Addiction GTS 15. What you see above is the brand's general chart, which covers the whole range rather than this model.

Official Brooks Size Chart for Addiction GTS 15

This chart covers EU 35.5 to EU 45.5, which is feet from 20.9 cm to 27.9 cm long.

This is the official brand-wide Brooks size chart. Brooks uses the same chart for the Brooks Addiction GTS 15 as for its other models.

Source: the manufacturer's size guide
Fetched 2026-10-25 17:05:53

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Official Brooks Size Chart for Addiction GTS 15
Foot Length US UK EU
20.9 - 21.2 cm 5 3 35.5
21.2 - 21.6 cm 5.5 3.5 36
21.6 - 22.0 cm 6 4 36.5
22.0 - 22.4 cm 6.5 4.5 37.5
22.4 - 22.9 cm 7 5 38
22.9 - 23.3 cm 7.5 5.5 38.5
23.3 - 23.7 cm 8 6 39
23.7 - 24.1 cm 8.5 6.5 40
24.1 - 24.6 cm 9 7 40.5
24.6 - 25.0 cm 9.5 7.5 41
25.0 - 25.4 cm 10 8 42
25.4 - 25.8 cm 10.5 8.5 42.5
25.8 - 26.3 cm 11 9 43
26.3 - 26.7 cm 11.5 9.5 44
26.7 - 27.1 cm 12 10 44.5
27.1 - 27.5 cm 12.5 10.5 45
27.5 - 27.9 cm 13 11 45.5

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

UK 3 (EU 35.5) 🇬🇧 UK 3.5 (EU 36) 🇬🇧 UK 4 (EU 36.5) 🇬🇧 UK 4.5 (EU 37.5) 🇬🇧 UK 5 (EU 38) 🇬🇧 UK 5.5 (EU 38.5) 🇬🇧 UK 6 (EU 39) 🇬🇧 UK 6.5 (EU 40) 🇬🇧 UK 7 (EU 40.5) 🇬🇧 UK 7.5 (EU 41) 🇬🇧 UK 8 (EU 42) 🇬🇧 UK 8.5 (EU 42.5) 🇬🇧 UK 9 (EU 43) 🇬🇧 UK 9.5 (EU 44) 🇬🇧 UK 10 (EU 44.5) 🇬🇧

Frequently Asked Questions

The Brooks Addiction GTS 15 runs true to size, so it matches standard sizing.

Your Brooks Addiction GTS 15 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 Brooks size.

Yes, the Brooks Addiction GTS 15 runs true to size compared to standard Brooks sizing. Order your normal size.

Use the size chart above to convert between EU, US and UK sizes for Brooks Addiction GTS 15. 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: 2026-10-25 17:05:52