Sacai x UGG Hiker Boot 'Black'
UGG · Style 1178390BLK
· Released 2025-10-24
from $398.11
Select a size:
Size chart — UGG
Use the chart below to convert between US, UK, EU and JP sizes.
Men
| US | UK | EU | JP (cm) |
|---|---|---|---|
| 3 | 2 | 36 | 21 |
| 4 | 3 | 37 | 22 |
| 4.5 | 3.5 | 37.5 | 22.5 |
| 5 | 4 | 38 | 23 |
| 5.5 | 4.5 | 38.5 | 23.5 |
| 6 | 5 | 39 | 24 |
| 6.5 | 5.5 | 39.5 | 24.5 |
| 7 | 6 | 40 | 25 |
| 7.5 | 6.5 | 40.5 | 25.5 |
| 8 | 7 | 41 | 26 |
| 8.5 | 7.5 | 41.5 | 26.5 |
| 9 | 8 | 42 | 27 |
| 9.5 | 8.5 | 42.5 | 27.5 |
| 10 | 9 | 43 | 28 |
| 10.5 | 9.5 | 43.5 | 28.5 |
| 11 | 10 | 44 | 29 |
| 11.5 | 10.5 | 44.5 | 29.5 |
| 12 | 11 | 45 | 30 |
| 13 | 12 | 46 | 31 |
| 14 | 13 | 48.5 | 32 |
| 15 | 14 | 49.5 | 33 |
| 16 | 15 | 50.5 | 34 |
| 17 | 16 | 51 | 35 |
| 18 | 17 | 52 | 36 |
Women
| US | UK | EU | JP (cm) |
|---|---|---|---|
| 5 | 3 | 36 | 22 |
| 5.5 | 3.5 | 36.5 | 22.5 |
| 6 | 4 | 37 | 23 |
| 6.5 | 4.5 | 37.5 | 23.5 |
| 7 | 5 | 38 | 24 |
| 7.5 | 5.5 | 38.5 | 24.5 |
| 8 | 6 | 39 | 25 |
| 8.5 | 6.5 | 39.5 | 25.5 |
| 9 | 7 | 40 | 26 |
| 9.5 | 7.5 | 40.5 | 26.5 |
| 10 | 8 | 41 | 27 |
| 10.5 | 8.5 | 41.5 | 27.5 |
| 11 | 9 | 42 | 28 |
| 11.5 | 9.5 | 42.5 | 28.5 |
| 12 | 10 | 43 | 29 |
| 13 | 11 | 44 | 30 |
| 14 | 12 | 45 | 31 |
| 15 | 13 | 48 | 32 |
Kids
| US | UK | EU | JP (cm) |
|---|---|---|---|
| 8T | 7 | 25 | 15 |
| 9T | 8 | 26 | 16 |
| 10T | 9 | 27.5 | 17 |
| 11T | 10 | 28.5 | 17.5 |
| 12T | 11 | 30 | 18.5 |
| 13K | 12 | 31 | 19.5 |
| 1K | 13 | 32.5 | 20 |
| 2K | 1 | 33.5 | 21 |
| 3K | 2 | 35 | 22 |
| 4K | 3 | 36 | 22.5 |
| 5K | 4 | 37 | 23.5 |
| 6K | 5 | 38 | 24.5 |
14-day returns & equal-value exchanges — policy
Size, price & UPC details
| Size | Price | UPC | Delivery |
|---|---|---|---|
| 4.5 | $398.11 | — | 3-4 business days |
| 5.5 | $398.11 | — | 3-4 business days |
About the Sacai x UGG Hiker Boot 'Black'
| Silhouette | UGG Hiker |
|---|---|
| Colorway | Black |
| Season | 2025 |
| Release Date | 2025-10-24 |