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2021
UltraBoost 21 'Grey Screaming Orange'
The adidas UltraBoost 21 ‘Grey Screaming Orange’ features sharply contrasting hues on the sock-like Primeknit upper. The two-tone knit construction is reinforced with a semi-translucent midfoot cage and a molded heel counter in a gradient purple and orange finish. The lightweight build is mounted on a full-length Boost midsole, shaped with an exaggerated heel curve and enhanced with Linear Energy Push, a revised Torsion system designed to yield a more responsive ride.
| Release Date | 03-01-2021 |
| SKU | FY0375 |
| Nickname | Grey Screaming Orange |
| Colorway | Dash Grey/Dash Grey/Screaming Orange |
| Main Color | Grey |
| Upper Material | Primeknit+ |
| Technology | Boost |
| Category | Running |