| Model | adidas UltraBoost 21 |
| Known as | "Black Grey" |
| Brand | |
| Release date | December 7, 2021 |
| Colorway | Black |
| Colors | Black, Gray |
| Style code | H01177 |
| Rating | |
| Type | Original, General Release |
| Gender | Men's |
| Sport | Lifestyle |
Added June 11, 2025 at 1:21:48 PM, Updated June 12, 2025 at 1:06:34 AM
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