Adidas UltraBoost 21 ‘Core Black’ FY0378


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Product Description:
The Adidas UltraBoost 21 ‘Core Black’ FY0378 is the ultimate running shoe for athletes seeking unparalleled comfort, performance, and style. Designed to elevate your running experience, this shoe combines innovative technology with a sleek design, making it a must-have for serious runners.

1. Boost Technology: The UltraBoost 21 features Adidas’ iconic Boost cushioning technology, providing exceptional energy return and responsive cushioning. It delivers maximum comfort and enhances your performance during long runs or intense training sessions.

2. Primeknit Upper: The shoe’s upper is crafted with Primeknit material, a lightweight, breathable fabric that adapts to your foot’s shape. It offers a flexible, sock-like fit, minimizing distractions and ensuring a secure lockdown.

3. Torsion System: Designed to support your foot’s natural movement, the Torsion System provides stability and prevents excessive twisting. It enhances your running gait, allowing for a smooth and efficient stride.

4. Continental Rubber Outsole: The UltraBoost 21 is equipped with a Continental Rubber outsole that offers excellent grip and durability. It delivers superior traction on both wet and dry surfaces, making it suitable for various terrains.

– Colorway: Core Black
– Style Code: FY0378
– Fit: Regular fit
– Midsole Drop: 10mm (heel: 30.5mm, forefoot: 20.5mm)
– Weight: Approximately 340 grams (size US 9)
– Arch Type: Normal
– Lace Closure: Regular
– Recommended Use: Long-distance running, training, or everyday wear

In summary, the Adidas UltraBoost 21 ‘Core Black’ FY0378 is a high-performance running shoe that brings together comfort, technology, and style. Its Boost cushioning, Primeknit upper, and Torsion System provide a supportive and responsive ride, while the Continental Rubber outsole ensures optimal traction. Whether you’re an avid runner or simply want a comfortable shoe for daily wear, the UltraBoost 21 is the perfect choice.


US M10 / W11 = UK9.5 = EU44, US M10.5 / W11.5 = UK10 = EU44.7, US M11 / W12 = UK10.5 = EU45.3, US M11.5 / W12.5 = UK11 = EU46, US M12 / W13 = UK11.5 = EU46.7, US M12.5 / W13.5 = UK12 = EU47.3, US M13 / W14 = UK12.5 = EU48, US M4 / W5 = UK3.5 = EU36, US M4.5 / W5.5 = UK4 = EU36.7, US M5 / W6 = UK4.5 = EU37.3, US M5.5 / W6.5 = UK5 = EU38, US M6 / W7 = UK5.5 = EU38.7, US M6.5 / W7.5 = UK6 = EU39.3, US M7 / W8 = UK6.5 = EU40, US M7.5 / W8.5 = UK7 = EU40.7, US M8 / W9 = UK7.5 = EU41.3, US M8.5 / W9.5 = UK8 = EU42, US M9 / W10 = UK8.5 = EU42.7, US M9.5 / W10.5 = UK9 = EU43.3


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