Glycerin Size Guide: Fit, Width & Size Chart

Runs half-size large

The Brooks Glycerin runs half-size large. Start by checking half a size down from your usual US size. Available in standard (D) width only. Use the table below to convert your foot length in millimetres straight to US, UK, EU and CM sizes — the one measurement every system agrees on.

Best fit recommendation for Brooks Glycerin

For a 278 mm foot, Brooks Glycerin runs large. Best fit: US 10.5 (likely US 9.5–11.5), UK 9.5, EU 41, 27.5 cm — confidence 50%.

Recommended size for a 278 mm foot on Brooks Glycerin (best fit + range, not a guarantee)
Best fit Likely range UK EU CM Confidence
US 10.5 US 9.5–11.5 9.5 41 27.5 50%

Evidence: 1 sources · no lab measurement in this record

See how we calculate for the methodology. Sizes vary by model and foot shape; this is an estimate, not a guarantee.

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Does the Glycerin run true to size?

Across our data the Brooks Glycerin runs half-size large. Start by checking half a size down from your usual US size.

Glycerin size conversion chart

Glycerin sizes by foot length. US Men's, US Women's, UK, EU and CM. The highlighted row is the model's true-to-size anchor.
Foot length US Men US Women UK EU CM
256.9mm 8.5 10 7.5 39 25.5
261.1mm 9 10.5 8 39 26
265.3mm 9.5 11 8.5 40 26.5
269.5mm 10 11.5 9 40 27
273.8mm 10.5 12 9.5 41 27.5
278mm 11 12.5 10 42 28
282.2mm 11.5 13 10.5 42 28
286.5mm 12 13.5 11 43 28.5
290.7mm 12.5 14 11.5 44 29
294.9mm 13 14.5 12 44 29.5
299.2mm 13.5 15 12.5 45 30

EU sizes are always rounded to a whole size — treat the EU column as the closest honest match.

Glycerin width availability

Available in standard (D) width only.

Only the standard (D) width is offered, so very wide or very narrow feet may need to adjust length or choose a brand with more width grades.

Expert fit notes

Max-cushion daily trainer runs slightly large. Plush ride with good flexibility; half-size down often recommended.

Where this data comes from

Built from 1 source and 928 measurements. See how we calculate for how confidence is scored.