Ultra Boost 21 UB21 – S23869

Short Description
Run beyond limits. The Ultra Boost 21 UB21 S23869 blends modern performance innovation with timeless Adidas style. Featuring responsive BOOST cushioning and a breathable Primeknit+ upper, it delivers ultimate comfort and energy return with every stride. ⚡👟

Key Features
👟 Silhouette: Ultra Boost 21 (Unisex / Running Shoe)
🧵 Primeknit+ upper adapts to your foot for lightweight support and flexibility
💨 BOOST midsole provides superior cushioning and maximum energy return
🦶 Stretchweb outsole with Continental™ rubber ensures top-tier traction and durability
🎯 Linear Energy Push system boosts responsiveness and propulsion
🌿 Made using recycled materials — designed with sustainability in mind

Specifications
🆔 Style code: S23869
🎨 Color: Core Black / Cloud White / Solar Yellow
⬆️ Low-top running design for performance and style
📦 Packaged in official Adidas Ultra Boost box

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

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