Best current price£167.00from Joom
Shopping.co.uk recommended and popular offers
Joom£167.00Visit shop Adidas Unisex White Ultraboost 21 Oreo Sneakers Cloud- Core-Black S23708 Cm
Visit shop1 offer from £167.00
View price history by clicking the chart icon.
The adidas Ultra Boost 21 is a high-performance trainer designed for adult male runners seeking a blend of superior cushioning and modern aesthetics. Featuring the signature Boost midsole and a durable Continental rubber outsole, this shoe provides an exceptionally responsive ride for daily training. While it excels in comfort and energy return, potential buyers should note that the knit-style upper offers a snug, sock-like fit that may require a break-in period for those with wider feet.
| Age Group | adult |
|---|---|
| Colour | Black |
| Gender | Male |
| Shoe Size UK | 8.5 |
| Accent Colour | White |
| Shoe Type | Trainers |
| Series | Ultra Boost 21 |
| Brand | adidas |
Yes, the high volume of Boost cushioning is specifically designed to provide comfort and energy return for long-distance efforts.
While excellent for treadmill running and light movement, the high stack height means they are less stable for heavy weightlifting or lateral-heavy agility training.
Use a specialized sneaker cleaner or a mixture of mild detergent and water with a soft brush, focusing on the white knit areas.
No, the knit upper is designed for breathability and is not waterproof.
Most users find them comfortable out of the box, but the knit upper may stretch slightly to accommodate your foot shape within the first 10-15 miles.
It provides superior grip and increased durability compared to standard rubber compounds, especially on wet surfaces.
Try adjusting the lacing pattern to be looser across the midfoot or wearing thinner performance socks.
This is a normal characteristic of TPU-based Boost foam; allow the shoe to rest for 24 hours between runs to let the foam recover its shape.
Use a dull object like a plastic pick to gently dislodge gravel or stones from the Continental rubber grooves.
To ensure your trainers last as long as possible, remove any surface dirt after each run using a soft-bristled brush. If the shoes become heavily soiled, hand-wash them with mild soap and cold water; avoid using a washing machine, as high heat and tumble cycles can degrade the foam integrity and glue bonds. Regarding compatibility, this shoe is best suited for neutral runners. Ensure you wear moisture-wicking synthetic socks to optimize the breathability of the knit upper. For sizing, the Ultra Boost 21 fits true to size, but those preferring a roomier feel or using orthotics may consider sizing up by half a size.
