UltraBoost 21 UB21 – FZ1923

Short Description
Step into the future of running with the UltraBoost 21 UB21 FZ1923 — a perfect balance of innovation, comfort, and style. Featuring a flexible Primeknit+ upper and a full-length BOOST midsole, this sneaker provides explosive energy return and a smooth, adaptive stride. ⚡👟

Key Features
👟 Silhouette: UltraBoost 21 (Unisex / Running Shoe)
🧵 Primeknit+ upper offers adaptive fit, breathability, and lightweight support
💨 BOOST midsole ensures maximum cushioning and high energy return
🦶 Stretchweb outsole with Continental™ rubber provides superior traction and durability
🎯 Linear Energy Push system enhances stability and responsiveness
🌿 Made with recycled materials to support sustainability

Specifications
🆔 Style code: FZ1923
🎨 Color: Core Black / Cloud White / Solar Red
⬆️ Low-top running silhouette
📦 Packaged in official Adidas Originals box

Size & Fit
📏 Fits true to size for most runners
🧠 For a roomier fit, consider going up half a size

Care
🧼 Clean gently with mild soap and a soft brush or cloth
🌬️ Air dry naturally — avoid direct heat or sunlight