Footwear / adidas / Believe That 1 / adidas Believe That 1 Black Carbon (PS)
adidas Believe That 1 Black Carbon (PS) KJ3148
Black Carbon (PS) · 2026
PS = pre-school sizes, EU 27½–35
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Where to buy
Sizes in stock · Across the shops below · pick yours
Verified delivery destinations
Spain.
The terms cover the Spanish mainland and the Balearic Islands. They exclude Ceuta, Melilla, and the Canary Islands. Other adidas country stores are separate storefronts.
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Price, last 90 days
Lowest recorded shop price · EUR90-day low: 50,70 €; average: 50,88 €. Today from 50,70 €, the lowest we have recorded.
Fact sheet
Details
- Brand
- adidas
- Style code
- KJ3148
- Colourway
- Black Carbon (PS)
- Released
- 7 May 2026
- Retail price at launch
- ≈ 70 $
- Nickname
- Core Black Iron Metallic
- Manufacturer
- adidas BV (Amsterdam), Hoogoorddreef 9-A, 1101 BA Amsterdam, NL
- Gender
- Kids
Availability by size
12 sizes are in stock, from 28 to 35.
Size conversion
EU · US · UK · A conversion chart, not stockScroll within the table to compare sizes.
This table scrolls within its region. Focus this region and use the arrow keys to compare sizes.
| EU | US | UK |
|---|---|---|
| 28 | 10.5K | 10K |
| 28 1/2 | 11K | 10.5K |
| 29 | 11.5K | 11K |
| 30 | 12K | 11.5K |
| 30 1/2 | 12.5K | 12K |
| 31 | 13K | 12.5K |
| 31 1/2 | 13.5K | 13K |
| 32 | 1Y | 13.5K |
| 33 | 1.5Y | 1Y |
| 33 1/2 | 2Y | 1.5Y |
| 34 | 2.5Y | 2Y |
| 35 | 3Y | 2.5Y |
| 35 1/2 | 3.5Y | 3Y |
| 36 | 4Y | 3.5Y |
| 36 2/3 | 4.5Y | 4Y |
| 37 1/3 | 5Y | 4.5Y |
| 38 | 5.5Y | 5Y |
| 38 2/3 | 6Y | 5.5Y |
| 39 1/3 | 6.5Y | 6Y |
| 40 | 7Y | 6.5Y |
Reference conversions only; this chart does not measure your foot or describe product fit.
About this product
2026 marks the arrival of this adidas Believe That 1. Black Carbon sets the base, while the Core Black Iron Metallic nickname points to a darker palette with a subtle metallic note. The youth-focused model keeps the colour story compact and easy to combine, letting the near-black treatment carry most of the visual weight while the metallic reference suggests a restrained change in finish.
Same shoe, other colours
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|---|---|---|---|---|---|
| From today | 50,70 € | 52,00 € | 71,95 € | 59,40 € | 92,00 € |
| Shops | 1 | 27 | 25 | 25 | 25 |
| Released | 2026 | 2018 | 2025 | 2025 | 2024 |
| RRP | ≈ 70 $ | ≈ 100 $ | ≈ 100 $ | ≈ 100 $ | ≈ 150 $ |
| Material | — | Leather | Leather | Leather | Textile |
From reselling sneakers to checking prices. In Ibiza since 2019; since September 2026 we sell nothing.
Shop prices and available sizes, checked daily. The shelves are empty; the spreadsheet is not. The story