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AI styling preview. Colors and details may differ from the original product photos.
adidas UltraBoost 21 'White Solar Yellow'
adidas · Style FY0377
· Released 2021-01-28
from $147.95
Select a size:
Size chart — adidas
Use the chart below to convert between US, UK, EU and JP sizes.
Men
| US | UK | EU | JP (cm) |
|---|---|---|---|
| 4 | 3.5 | 36 | 22.1 |
| 4.5 | 4 | 36 2/3 | 22.5 |
| 5 | 4.5 | 37 1/3 | 22.9 |
| 5.5 | 5 | 38 | 23.3 |
| 6 | 5.5 | 38 2/3 | 23.8 |
| 6.5 | 6 | 39 1/3 | 24.2 |
| 7 | 6.5 | 40 | 24.6 |
| 7.5 | 7 | 40 2/3 | 25.0 |
| 8 | 7.5 | 41 1/3 | 25.5 |
| 8.5 | 8 | 42 | 25.9 |
| 9 | 8.5 | 42 2/3 | 26.3 |
| 9.5 | 9 | 43 1/3 | 26.7 |
| 10 | 9.5 | 44 | 27.1 |
| 10.5 | 10 | 44 2/3 | 27.6 |
| 11 | 10.5 | 45 1/3 | 28.0 |
| 11.5 | 11 | 46 | 28.4 |
| 12 | 11.5 | 46 2/3 | 28.8 |
| 12.5 | 12 | 47 1/3 | 29.3 |
| 13 | 12.5 | 48 | 29.7 |
| 13.5 | 13 | 48 2/3 | 30.1 |
| 14 | 13.5 | 49 1/3 | 30.5 |
| 14.5 | 14 | 50 | 31.0 |
| 15 | 14.5 | 50 2/3 | 31.4 |
| 16 | 15 | 51 1/3 | 31.8 |
| 17 | 16 | 52 2/3 | 32.6 |
| 18 | 17 | 53 1/3 | 33.5 |
| 19 | 18 | 54 2/3 | 34.3 |
| 20 | 19 | 55 2/3 | 35.2 |
Women
| US | UK | EU | JP (cm) |
|---|---|---|---|
| 5 | 3.5 | 36 | 22.1 |
| 5.5 | 4 | 36 2/3 | 22.5 |
| 6 | 4.5 | 37 1/3 | 22.9 |
| 6.5 | 5 | 38 | 23.3 |
| 7 | 5.5 | 38 2/3 | 23.8 |
| 7.5 | 6 | 39 1/3 | 24.2 |
| 8 | 6.5 | 40 | 24.6 |
| 8.5 | 7 | 40 2/3 | 25.0 |
| 9 | 7.5 | 41 1/3 | 25.5 |
| 9.5 | 8 | 42 | 25.9 |
| 10 | 8.5 | 42 2/3 | 26.3 |
| 10.5 | 9 | 43 1/3 | 26.7 |
| 11 | 9.5 | 44 | 27.1 |
| 11.5 | 10 | 44 2/3 | 27.6 |
| 12 | 10.5 | 45 1/3 | 28.0 |
| 12.5 | 11 | 46 | 28.4 |
| 13 | 11.5 | 46 2/3 | 28.8 |
| 13.5 | 12 | 47 1/3 | 29.3 |
| 14 | 12.5 | 48 | 29.7 |
| 14.5 | 13 | 48 2/3 | 30.1 |
| 15 | 13.5 | 49 1/3 | 30.5 |
| 15.5 | 14 | 50 | 31.0 |
Kids
| US | UK | EU | JP (cm) |
|---|---|---|---|
| 1k | 0k | 16 | 8.1 |
| 2k | 1k | 17 | 9.0 |
| 3k | 2k | 18 | 9.8 |
| 4k | 3k | 19 | 10.6 |
| 5k | 4k | 20 | 11.5 |
| 5.5k | 5k | 21 | 12.3 |
| 6k | 5.5k | 22 | 12.8 |
| 6.5k | 6k | 23 | 13.2 |
| 7k | 6.5k | 23.5 | 13.6 |
| 7.5k | 7k | 24 | 14.0 |
| 8k | 7.5k | 25 | 14.5 |
| 8.5k | 8k | 25.5 | 14.9 |
| 9k | 8.5k | 26 | 15.3 |
| 9.5k | 9k | 26.5 | 15.7 |
| 10k | 9.5k | 27 | 16.1 |
| 10.5k | 10k | 28 | 16.6 |
| 11k | 10.5k | 28.5 | 17.0 |
| 11.5k | 11k | 29 | 17.4 |
| 12k | 11.5k | 30 | 17.8 |
| 12.5k | 12k | 30.5 | 18.3 |
| 13k | 12.5k | 31 | 18.7 |
| 13.5k | 13k | 31.5 | 19.1 |
| 1 | 13.5k | 32 | 19.5 |
| 1.5 | 1 | 33 | 20.0 |
| 2 | 1.5 | 33.5 | 20.4 |
| 2.5 | 2 | 34 | 20.8 |
| 3 | 2.5 | 35 | 21.2 |
| 3.5 | 3 | 35.5 | 21.6 |
| 4 | 3.5 | 36 | 22.1 |
| 4.5 | 4 | 36 2/3 | 22.5 |
| 5 | 4.5 | 37 1/3 | 22.9 |
| 5.5 | 5 | 38 | 23.3 |
| 6 | 5.5 | 38 2/3 | 23.8 |
| 6.5 | 6 | 39 1/3 | 24.2 |
| 7 | 6.5 | 40 | 24.6 |
| 7.5 | 7 | 40 2/3 | 25.0 |
Size sold out? Notify me
Size, price & UPC details
| Size | Price | UPC | Delivery |
|---|---|---|---|
| US M 4.5 / W 5.5 | — | 194813153944 | Out of stock |
| US M 5 / W 6 | — | 194813153937 | Out of stock |
| US M 6 / W 7 | — | 194813150233 | Out of stock |
| US M 6.5 / W 7.5 | — | 194813154002 | Out of stock |
| US M 7 / W 8 | $154.95 | 194813153852 | 5-7 business days |
| US M 7.5 / W 8.5 | — | 194813153913 | Out of stock |
| US M 8 / W 9 | $147.95 | 194813154026 | 5-7 business days |
| US M 8.5 / W 9.5 | $235.95 | 194813153951 | 5-7 business days |
| US M 9 / W 10 | — | 194813153883 | Out of stock |
| US M 9.5 / W 10.5 | — | 194813153982 | Out of stock |
| US M 10 / W 11 | $297.95 | 194813153975 | 3-4 business days |
| US M 10.5 / W 11.5 | — | 194816372366 | Out of stock |
| US M 11 / W 12 | — | 194813153876 | Out of stock |
| US M 11.5 / W 12.5 | — | 194813153869 | Out of stock |
| US M 12 / W 13 | $235.95 | 194813153906 | 5-7 business days |
| US M 12.5 / W 13.5 | — | 194813153845 | Out of stock |
| US M 13 / W 14 | $235.95 | 194813153999 | 5-7 business days |
| US M 14 / W 15 | — | 194813154019 | Out of stock |
About the adidas UltraBoost 21 'White Solar Yellow'
The adidas UltraBoost 21 ‘White Solar Yellow’ presents an elemental white and black colorway of the performance runner enlivened with fluorescent streaks of color. In comparison to the UltraBoost 20, this pair adds 6% more Boost cushioning and a new Torsion system that yields a 15% increase in forefoot stiffness for a more responsive run. Up top, a breathable Primeknit upper delivers sock-like comfort. Primeblue construction, featuring recycled Parley Ocean Plastic, maintains adidas’ sustainability efforts.
| Silhouette | UltraBoost 21 |
|---|---|
| Colorway | Cloud White/Core Black/Solar Yellow |
| Material | Primeknit+ |
| Season | 2021 |
| Release Date | 2021-01-28 |
What buyers say about us
Selected customer feedback. Feedback about our store and the buying experience, from sold.supply, eBay and Trustpilot. The source and purchase verification are shown on each card. These are not product ratings.
Easy experience
Easy experience. My wife loves her sneakers!Purchased item
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Ordered with no hassle and the checkout was quick. The shoes look just as good as the photos, fit true to size, and feel comfortable right out of the box. I'd happily order from here again.Purchased item
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They had many colors in the shoe I…
They had many colors in the shoe I wanted plus best price on the whitaker rejuven8s. The communication was great and shoes shipped quickly. I bought all 3 colors, they look better in person!!Fast shipper and I’m glad I found them
Fast shipper and I’m glad I found them. I have been looking for these bred 11s for the longest. The sneakers were authentic and nicely boxed. I will definitely order from this store again.Purchased item
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