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2017
UltraBoost Uncaged 'Black Grey'
Released in June 2017, this adidas Ultra Boost Uncaged colorway features a Core Black and solid grey Primeknit upper with a sock-like collar, matte black heel counter, black branding, white Boost midsole, and black Continental rubber outsole.
| Release Date | 05-15-2017 |
| SKU | BY2551 |
| Nickname | Black Grey |
| Colorway | Clear Brown/Chalk White |
| Main Color | Brown |
| Upper Material | Primeknit |
| Technology | Boost |
| Category | Running |
| Designer | Ben Herath |