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AI styling preview. Colors and details may differ from the original product photos.
adidas UltraBoost 21 'Grey'
adidas · Style FY0381
· Released 2021-01-28
$190.00$149.9521% UNDER RETAIL
You save $40.05 vs the $190.00 retail price.
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 / W 5 | $149.95 | 194813165428 | 3-4 business days |
| US M 4.5 / W 5.5 | — | 194813161758 | Out of stock |
| US M 5 / W 6 | — | 194813165411 | Out of stock |
| US M 5.5 / W 6.5 | — | 194813165367 | Out of stock |
| US M 6 / W 7 | — | 194813161741 | Out of stock |
| US M 6.5 / W 7.5 | — | 194813161734 | Out of stock |
| US M 7 / W 8 | — | 194813161710 | Out of stock |
| US M 7.5 / W 8.5 | $187.95 | 194813161727 | 3-4 business days |
| US M 8 / W 9 | — | 194813161703 | Out of stock |
| US M 8.5 / W 9.5 | — | 194813161673 | Out of stock |
| US M 9 / W 10 | — | 194813161642 | Out of stock |
| US M 9.5 / W 10.5 | $187.95 | 194813161680 | 5-7 business days |
| US M 10 / W 11 | $187.95 | 194813161635 | 5-7 business days |
| US M 10.5 / W 11.5 | $187.95 | 194816368352 | 5-7 business days |
| US M 11 / W 12 | $187.95 | 194813161666 | 5-7 business days |
| US M 11.5 / W 12.5 | $187.95 | 194813165374 | 5-7 business days |
| US M 12 / W 13 | — | 194813165404 | Out of stock |
| US M 12.5 / W 13.5 | — | 194813165381 | Out of stock |
| US M 13 / W 14 | — | 194813165398 | Out of stock |
| US M 13.5 / W 14.5 | — | 194811760236 | Out of stock |
| US M 14 / W 15 | — | 194813161659 | Out of stock |
| US M 14.5 / W 15.5 | — | 194811760243 | Out of stock |
| US M 15 / W 16 | — | 194813161697 | Out of stock |
| US M 16 / W 17 | — | 194819544890 | Out of stock |
| US M 17 / W 18 | — | 194819545187 | Out of stock |
| US M 18 / W 19 | — | 194819544906 | Out of stock |
About the adidas UltraBoost 21 'Grey'
The adidas UltraBoost 21 ‘Grey’ applies a monochromatic neutral finish to the lightweight and responsive performance running shoe. The sneaker’s breathable knit build, incorporating recycled Primeblue materials that include Parley Ocean Plastic, sits atop full-length Boost cushioning that packs 6% more Boost capsules than the UltraBoost 20. Underfoot, a revised Torsion system dubbed Linear Energy Push yields improved forefoot stiffness and energy return.
| Silhouette | UltraBoost 21 |
|---|---|
| Colorway | Grey Three/Grey Three/Grey Four |
| 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.
La entrega fue muy rapida y la atención…
La entrega fue muy rapida y la atención para la devolución también.
Gracias.Easy experience
Easy experience. My wife loves her sneakers!Purchased item
adidas SL72 RS 'Collegiate Orange Bright Blue'
No hassle and shoes look just as good as photos
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
On Running Cloudvista 3 'Ivory Wash'
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!!