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Joom£85.00Visit shop Adidas Men's Gray Ultraboost 21 Crew Navy Sneakers Blue Core-Black Fy0350 Cm
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The adidas UltraBoost 21 'Crew Navy' trainers are designed for adult males seeking unparalleled comfort and responsive performance for both daily runs and casual wear. Their key benefit is the superior cushioning and energy return provided by the Boost technology. A potential caveat is that their specialized design might be more performance-oriented than ideal for all types of casual activities. These low-top sneakers feature a secure fit and a stylish 'Crew Navy' colourway.
| Age Group | adult |
|---|---|
| Colour | Blue |
| Gender | Male |
| Shoe Size UK | 7.5 |
| Shoe Type | Trainers |
| Series | UltraBoost 21 |
| Model Part Number | FY0350 |
| Brand | adidas |
Yes, the UltraBoost 21 is highly regarded for marathon running due to its superior cushioning, energy return, and comfortable fit, which help in reducing fatigue over long distances.
The UltraBoost 21 can be used for general gym workouts, offering good cushioning and stability. However, for very specific activities like heavy weightlifting, shoes with a flatter, more rigid sole might be preferred.
Refer to the adidas sizing chart for accurate measurements. The UK 7.5 size is specified for this particular model. Many users find the UltraBoost 21 to fit true to size, but the Primeknit+ upper offers some adaptability.
'Crew Navy' refers to the primary colourway of the trainers, which is a shade of dark blue.
The Primeknit+ upper is breathable and water-resistant to some extent but not fully waterproof. They are designed for running and general wear, not for prolonged exposure to heavy rain or submersion in water.
The Linear Energy Push (LEP) system is integrated into the midsole to provide increased stability during the push-off phase of your stride, contributing to a more efficient and powerful run.
You can clean the Boost midsole with a damp cloth and mild soap. Avoid abrasive cleaners. For stubborn marks, a soft brush can be used gently.
Ensure laces are loosened appropriately before putting on. The Primeknit+ upper may require a short break-in period to adapt to your foot shape. Try wearing them for short durations initially.
The Boost midsole is designed for durability, but extreme wear can impact its properties. Ensure the shoes are clean, as dirt accumulation can affect performance. For running, consider replacing shoes after 300-500 miles.
While the Continental™ Rubber outsole offers excellent grip, extreme conditions can still pose a risk. Exercise caution on very slick surfaces. Ensure the outsole is free from mud or debris.
Avoid machine washing or drying. Ensure proper storage away from direct heat. If the Primeknit+ upper has lost its shape, it may be difficult to fully restore.
Setup:
These trainers are ready to wear straight out of the box. Simply lace them up to your preferred tightness. Ensure the tongue is positioned comfortably and the heel collar sits correctly around your ankle.
Compatibility:
The UltraBoost 21 is designed as a versatile running shoe suitable for road running and general athletic training. It is compatible with most standard athletic socks.
Care Instructions:
