Y-3 UltraBoost 21 'White Bold Orange'
| SKU | GZ9134 |
| Nickname | White Bold Orange |
| Colorway | Core White/Bliss/Bold Orange |
| Main Color | White |
| Upper Material | Primeknit |
| Technology | Boost |
| Category | Running |
| Designer | Yohji Yamamoto |
| SKU | GZ9134 |
| Nickname | White Bold Orange |
| Colorway | Core White/Bliss/Bold Orange |
| Main Color | White |
| Upper Material | Primeknit |
| Technology | Boost |
| Category | Running |
| Designer | Yohji Yamamoto |