adidas UltraBoost 21 "Black Sub Green"
The adidas UltraBoost 21 "Black Sub Green" (FZ1923) released in April 2021.
Original retail (2021): $180 · Lowest resale ask: $129 on GOAT (Nov 14, 2026)
Colorway: Cloud White/Sub Green/Core Black · Style code: FZ1923 · Release date: April 2021 · Lowest resale ask: $129 · Availability: Available now
Source: GOAT's catalog · stores checked Nov 14, 2026, 4:22 PM ET
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