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AI styling preview. Colors and details may differ from the original product photos.
Saucony Endorphin Speed 5 'Boston'
Saucony · Style S21007-403
· Released 2026-01-15
from $195.95
Select a size:
Size chart — Saucony
Use the chart below to convert between US, UK, EU and JP sizes.
Men
| US | UK | EU | JP (cm) |
|---|---|---|---|
| 3 | 2 | 35 | |
| 3.5 | 2.5 | 35.5 | |
| 4 | 3 | 36 | |
| 4.5 | 3.5 | 37 | 22.5 |
| 5 | 4 | 37.5 | 23 |
| 5.5 | 4.5 | 38 | 23.5 |
| 6 | 5 | 38.5 | 24 |
| 6.5 | 5.5 | 39 | 24.5 |
| 7 | 6 | 40 | 25 |
| 7.5 | 6.5 | 40.5 | 25.5 |
| 8 | 7 | 41 | 26 |
| 8.5 | 7.5 | 42 | 26.5 |
| 9 | 8 | 42.5 | 27 |
| 9.5 | 8.5 | 43 | 27.5 |
| 10 | 9 | 44 | 28 |
| 10.5 | 9.5 | 44.5 | 28.5 |
| 11 | 10 | 45 | 29 |
| 11.5 | 10.5 | 46 | 29.5 |
| 12 | 11 | 46.5 | 30 |
| 12.5 | 11.5 | 47 | 30.5 |
| 13 | 12 | 48 | 31 |
| 14 | 13 | 49 | |
| 15 | 14 | 50 | |
| 16 | 15 | 51.5 |
Women
| US | UK | EU | JP (cm) |
|---|---|---|---|
| 4 | 2 | 34.5 | |
| 4.5 | 2 | 35 | |
| 5 | 3 | 35.5 | 21.5 |
| 5.5 | 3.5 | 36 | 22 |
| 6 | 4 | 37 | 22.5 |
| 6.5 | 4.5 | 37.5 | 23 |
| 7 | 5 | 38 | 23.5 |
| 7.5 | 5.5 | 38.5 | 24 |
| 8 | 6 | 39 | 24.5 |
| 8.5 | 6.5 | 40 | 25 |
| 9 | 7 | 40.5 | 25.5 |
| 9.5 | 7.5 | 41 | 26 |
| 10 | 8 | 42 | 26.5 |
| 10.5 | 8.5 | 42.5 | 27 |
| 11 | 9 | 43 | 27.5 |
| 11.5 | 9.5 | 44 | |
| 12 | 10 | 44.5 | |
| 13 | 11 | 46 |
Kids
| US | UK | EU | JP (cm) |
|---|---|---|---|
| 0 | 0 | 15 | |
| 1 | 0 | 16.5 | |
| 2 | 1.5 | 17.5 | |
| 2.5 | 2 | 18 | |
| 3 | 2.5 | 18.5 | |
| 3.5 | 3 | 19 | |
| 4 | 3.5 | 19.5 | |
| 4.5 | 4 | 20.5 | |
| 5 | 4.5 | 21 | |
| 5.5 | 5 | 21.5 | |
| 6 | 5.5 | 22 | |
| 6.5 | 6 | 23 | |
| 7 | 6.5 | 23.5 | |
| 7.5 | 7 | 24 | |
| 8 | 7.5 | 25 | |
| 8.5 | 8 | 25.5 | |
| 9 | 8.5 | 26 | |
| 9.5 | 9 | 26.5 | |
| 10 | 9.5 | 27.5 | |
| 10.5 | 10 | 28 | |
| 11 | 10.5 | 28.5 | |
| 11.5 | 11 | 29 | |
| 12 | 11.5 | 30 | |
| 12.5 | 12 | 30.5 | |
| 13 | 12.5 | 31 | |
| 13.5 | 13 | 32 | |
| 1 | 13.5 | 32.5 | |
| 1.5 | 1 | 33 | |
| 2 | 1.5 | 33.5 | |
| 2.5 | 2 | 34.5 | |
| 3 | 2.5 | 35 | |
| 3.5 | 3 | 35.5 | |
| 4 | 3.5 | 36 | |
| 4.5 | 4 | 37 | |
| 5 | 4.5 | 37.5 | |
| 5.5 | 5 | 38 | |
| 6 | 5.5 | 38.5 | |
| 6.5 | 6 | 39.5 | |
| 7 | 6.5 | 40 |
Size, price & UPC details
| Size | Price | UPC | Delivery |
|---|---|---|---|
| US M 8 / W 9.5 | — | 195021629511 | Out of stock |
| US M 9 / W 10.5 | — | — | Out of stock |
| US M 9.5 / W 11 | — | — | Out of stock |
| US M 10 / W 11.5 | $255.95 | — | 5-7 business days |
| US M 10.5 / W 12 | $255.95 | — | 5-7 business days |
| US M 11 / W 12.5 | — | — | Out of stock |
| US M 11.5 / W 13 | — | 0195021629580 | Out of stock |
| US M 12 / W 13.5 | $195.95 | 0195021629597 | 5-7 business days |
| US M 13 / W 14.5 | $255.95 | — | 5-7 business days |
| US M 14 / W 15.5 | $195.95 | 0195021629627 | 5-7 business days |
| US M 15 / W 16.5 | $255.95 | — | 5-7 business days |
About the Saucony Endorphin Speed 5 'Boston'
| Silhouette | Endorphin Speed 5 |
|---|---|
| Colorway | White/Multi |
| Material | Mesh |
| Season | 2026 |
| Release Date | 2026-01-15 |
What buyers say about us
Selected customer feedback. Feedback about our store and the buying experience, from sold.supply, eBay and Trustpilot. The source and purchase verification are shown on each card. These are not product ratings.
everything was great timely perfect…
everything was great timely perfect condition and great price★★★★★Verified eBay purchase
Seller was quick to ship the item, it was packed very well, which is good, because FedEx did not treat the box kindly, lol. The shoe’s survived in great shape and are exactly as described. Thanks! A++++ seller.
★★★★★Verified eBay purchase
Recomendado el vendedor muchas gracias por el producto el envío rápido y eficiente en su caja original sellado y protegido tal como se veía en fotos
★★★★★Verified eBay purchase
Smooth transaction and quick delivery for a quality product.