| Model | adidas UltraBoost 21 |
| Known as | "Focus Olive" |
| Brand | |
| Release date | March 15, 2022 |
| Colorway | Focus Olive / Core Black / Acid Yellow |
| Colors | Green, Black, Yellow |
| Retail price | $220 (€199, £166, ¥26,097) |
| Style code | FY3956 |
| Rating | |
| Type | Original, General Release |
| Gender | Men's |
| Sport | Lifestyle |
This winterized running shoe is built for wet and snowy conditions, featuring a waterproof and breathable GORE-TEX membrane integrated into the supportive Primeknit+ upper. The colorway is dominated by Focus Olive (a military green/khaki) and Core Black, used for the knit upper, cage, and full-length BOOST midsole. A striking accent is added by the Acid Yellow detailing on the toe tip and heel tab. The shoe is completed with a Continental™ WinterGrip™ Rubber outsole, designed for solid traction on wet, icy, and snowy surfaces.
Added June 11, 2025 at 1:36:18 PM, Updated October 15, 2025 at 12:02:57 PM
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