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2021
UltraBoost 21 'Black Beige Tone'
The adidas UltraBoost 21 ‘Black Beige Tone’ pairs sock-like comfort with a responsive ride. The black and brown Primeknit upper is made in part with Parley Ocean Plastic, featuring upcycled plastic waste gathered from beaches and coastal communities. Tan corduroy appears on the forefoot overlay and midfoot cage, the latter integrated into a set of neon green laces for a lockdown fit. Lightweight cushioning is provided by a full-length Boost midsole, supported underfoot by a Continental Rubber outsole and adidas’ updated Torsion system, dubbed Linear Energy Push.
| Release Date | 10-28-2021 |
| SKU | GX5254 |
| Nickname | Black Beige Tone |
| Colorway | Core Black/Beige Tone/Signal Green |
| Main Color | Black |
| Upper Material | Primeknit |
| Technology | Boost |
| Category | Running |