adidas UltraBoost 21 'Tokyo' - White - UK 8.5
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Product Information
Full details
The Adidas UltraBoost 21 Tokyo is designed for adult male runners seeking enhanced performance and stability. Its key benefit is a highly responsive and comfortable ride, thanks to an increased Boost midsole. A potential caveat for some users might be its specific fit, which is designed to be snug.
All features
| Age Group | adult |
|---|---|
| Colour | White |
| Gender | Male |
| Material | Polyester |
| Shoe Size UK | 8.5 |
| Series | UltraBoost |
| Model Part Number | S23863 |
| Brand | adidas |
Extended Product Information
FAQs
What makes the UltraBoost 21 Tokyo different from previous models?
The UltraBoost 21 Tokyo features 6% more Boost capsules in the midsole for enhanced energy return and responsiveness, along with an optimized upper design for a more secure fit.
Is the Primeknit upper truly made from recycled materials?
Yes, the Primeknit upper is made from recycled ocean plastic, contributing to sustainability.
Can I wear these shoes for walking or casual use?
While they are designed for running, the comfort and cushioning make them suitable for casual wear for some users. However, their performance is optimized for running.
How do I determine the right size?
Refer to the Adidas sizing guide. The UltraBoost 21 Tokyo is known for a snug, performance-oriented fit, so some users may consider going up half a size if they prefer more room.
What is the expected lifespan of these running shoes?
With proper care and regular use for running, the UltraBoost 21 Tokyo is typically expected to last between 300 to 500 miles. Monitor for signs of wear on the outsole and midsole cushioning.
Are these shoes suitable for all types of running terrain?
They are best suited for road running and light trails. The Continental™ rubber outsole provides good grip, but extreme off-road conditions may require specialized trail shoes.
Troubleshooting
Slipping heel
Ensure the laces are tied securely using a runner's knot or by adjusting the lacing pattern to provide a tighter fit around the ankle.
Discomfort or rubbing
Verify the shoe size is correct. Break in the shoes gradually with shorter runs. Ensure socks are appropriate for running to prevent friction.
Reduced cushioning feel over time
Boost cushioning is durable, but performance may slightly decrease with extensive mileage. Consider replacing shoes after 300-500 miles of use.
Poor grip on wet surfaces
While the Continental™ rubber offers good grip, very slick surfaces can still be challenging. Ensure the outsole is clean from debris.
Pros and Cons
Pros
- Superior cushioning and energy return
- Sustainable materials used in construction
- Excellent traction on various surfaces
- Breathable and supportive upper
- Durable design for frequent use
Cons
- May feel too snug for those preferring a wider fit
- Higher price point compared to basic running shoes
- Specific design optimized for performance, potentially less versatile for casual wear
Setup, Compatibility & Care
Setup:
These shoes are ready to wear out of the box. Ensure you have the correct size for a proper fit.
Compatibility:
The Adidas UltraBoost 21 Tokyo is primarily designed for running. It is compatible with most running socks and athletic apparel.
Care:
- Cleaning: Remove loose dirt with a soft brush. For deeper cleaning, use a mild detergent and cold water with a soft cloth or sponge. Avoid machine washing or harsh chemicals. Allow shoes to air dry naturally, away from direct heat.
- Storage: Store in a cool, dry place, ideally not compressed.