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2021
UltraBoost 21 'Vivid Red'
The adidas UltraBoost 21 ‘Vivid Red’ delivers a monochromatic take on a performance running shoe built with sustainability in mind. The crimson Primeknit upper, featuring recycled Parley Ocean Plastic and zero virgin polyester, rides atop a full-length Boost midsole in the same bold finish. Contrasting black detailing outlines the shoe’s revised Torsion system, dubbed Linear Energy Push and designed to lessen forefoot flexibility for a more responsive ride. A Stretchweb Continental rubber outsole provides reliable grip.
| Release Date | 03-01-2021 |
| SKU | FZ1922 |
| Nickname | Vivid Red |
| Colorway | Vivid Red/Vivid Red/Core Black |
| Main Color | Red |
| Upper Material | Primeknit+ |
| Technology | Boost |