Endorphin Speed 5
Fit verdict, size conversion guide, and millimeter measurements.
This shoe runs approximately 1.3mm shorter than standard sizing. If you are between sizes or prefer a relaxed fit, go a half size up.
Aggregated feedback from verified shoe owners
| EU | US (W) | UK | Foot Length | Cavity Length |
|---|---|---|---|---|
| 36 | — | 3 | 22.4 cm | 238.68 mm |
| 37 | — | 3.5 | 23.1 cm | 245.68 mm |
| 40 | — | 6 | 25.1 cm | 265.68 mm |
| 40.5 | — | 6.5 | 25.4 cm | 268.68 mm |
| 41 | — | 7 | 25.7 cm | 271.68 mm |
| 42 | — | 7.5 | 26.4 cm | 278.68 mm |
| 42.5 | — | 8 | 26.7 cm | 281.68 mm |
| 43 | — | 8.5 | 27.1 cm | 285.68 mm |
| 44 | — | 9 | 27.7 cm | 291.68 mm |
| 44.5 | — | 9.5 | 28.1 cm | 295.68 mm |
| 45 | — | 10 | 28.4 cm | 298.68 mm |
| 46 | — | 10.5 | 29.1 cm | 305.68 mm |
| 46.5 | — | 11 | 29.4 cm | 308.68 mm |
| 48 | — | 12 | 30.3 cm | 317.68 mm |
Does the Saucony Endorphin Speed 5 run big or small?
It tends to run slightly small. We recommend going a half size up for the best fit. This shoe runs approximately 1.3mm shorter than standard sizing. If you are between sizes or prefer a relaxed fit, go a half size up.
How does Shoe Fit determine shoe sizing?
Shoe Fit calculates the real-world interior shoe cavity in millimeters combined with real owner feedback, rather than relying on arbitrary brand charts.
Already own a shoe that fits well? Shoe Fit cross-references its internal cavity against the Saucony Endorphin Speed 5 to give you your personalized size.
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