adidas UltraBoost 21 - White
Not Available
Currently unavailable
Currently out of stock
This product is not available at the moment. Check back later.
Product Information
Full details
The adidas UltraBoost 21 trainers are designed for adult female runners seeking ultimate comfort and responsive performance. They offer advanced cushioning for an unparalleled running experience, ideal for daily runs or intense training. A potential consideration is their specific fit, which may require trying them on before purchase to ensure optimal comfort for your foot type.
All features
| Age Group | adult |
|---|---|
| Colour | White |
| Gender | Female |
| Shoe Size UK | 9 |
| Accent Colour | Green |
| Shoe Type | Trainers |
| Series | UltraBoost 21 |
| Model Part Number | FY0401-90W |
| Brand | adidas |
Extended Product Information
FAQs
Are the adidas UltraBoost 21 suitable for wide feet?
The Primeknit upper is designed to be adaptive, but it runs true to size. If you have significantly wide feet, it's recommended to try them on or consider models specifically designed for wider fits.
How long does the Boost cushioning typically last?
The Boost cushioning is known for its durability and resistance to temperature changes. With proper care and regular use, it can maintain its responsiveness for several hundred miles, though this can vary based on individual running style and terrain.
Can I wear these trainers for gym workouts?
While excellent for running, the UltraBoost 21's cushioning is optimized for forward motion. For activities requiring lateral stability, such as weightlifting or cross-training, shoes with a flatter, more stable base might be more appropriate.
What is the difference between UltraBoost 21 and previous models?
The UltraBoost 21 typically features an updated Torsion system for enhanced stability, a more generous Boost midsole for increased cushioning, and often a refined Primeknit pattern for improved fit and breathability compared to earlier versions.
How do I know if I've chosen the right size?
There should be about a thumb's width of space between your longest toe and the end of the shoe when standing. The shoe should feel snug and secure around the midfoot and heel without any pressure points or excessive tightness.
Are these shoes waterproof?
No, the Primeknit upper is designed for breathability and is not waterproof. They are suitable for dry conditions and light rain, but not for running in heavy downpours or through puddles.
Troubleshooting
Shoe feels too tight or restrictive
Loosen the laces and re-tie them, ensuring they are not overtightened. The Primeknit upper may take a few runs to fully conform to your foot shape.
Reduced cushioning or responsiveness
The Boost cushioning may take some initial runs to 'break in'. If the issue persists after several uses, ensure the shoes are clean and free from debris that might affect performance.
Slipping in the heel
Ensure the laces are properly secured, utilizing the heel lock lacing technique if necessary. Check that you have the correct size; a heel slip can indicate the shoe is too large.
Upper material is dirty
Follow the care instructions for cleaning with mild soap and water. Avoid machine washing if possible.
Pros and Cons
Pros
- Exceptional comfort for long-distance running.
- High energy return from Boost midsole.
- Breathable and adaptive upper material.
- Durable construction for frequent use.
- Stylish design suitable for both running and casual wear.
Cons
- Can be a higher price point compared to other trainers.
- Fit may vary; trying them on is recommended.
- Lighter colors may show dirt more readily.
- May not offer enough support for extreme pronation without additional inserts.
Setup, Compatibility & Care
Setup:
These trainers require no specific setup. They are ready to wear straight out of the box. Ensure you have selected the correct size for optimal comfort and performance.
Compatibility:
The adidas UltraBoost 21 is designed for road running and general athletic use. They are compatible with most standard running socks. For specific orthotic needs, consult with a footwear specialist to ensure compatibility with your inserts.
Care Instructions:
- Cleaning: For general cleaning, use a soft brush or cloth to remove loose dirt. For tougher stains, use a mild soap with cold water and a soft brush. Avoid harsh detergents or abrasive cleaners.
- Drying: Allow the trainers to air dry naturally at room temperature. Do not place them near direct heat sources like radiators or in a tumble dryer, as this can damage the materials.
- Laundering: While some users machine wash their trainers, it is generally not recommended by the manufacturer as it can shorten the lifespan of the cushioning and affect the shoe's structure. If you choose to machine wash, use a gentle cycle with cold water and place shoes in a mesh laundry bag. Always air dry afterwards.
- Storage: Store in a cool, dry place away from direct sunlight when not in use.