Footwear / Under Armour / Surge / Surge 4 AC GS 'Castlerock'
Surge 4 AC GS 'Castlerock' 3027103-101
Castlerock/Anthracite · 2024
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Where to buy
Sizes in stock · Across the shops below · pick yours
Verified delivery destinations
Spain.
The .es help page says this site ships only to Spanish territory and directs other countries to Sportsdirect.com. Regional limits include mainland Spain, the Canary Islands, the Balearic Islands, Ceuta, and Melilla. Official transit times conflict: the options page says 5–10 days, while the homepage says 3–7 days.
Check address and product restrictions at checkout.
Verified delivery destinations
Spain.
The item result confirms home delivery to postcode 28001 in Madrid. This supports an ES sample for this item and postcode only. It does not confirm every Horma item or every Spanish postcode. The seller label “Enviado por Horma/BE/DE/ES/FR/IT/NL/PT” does not prove destination countries. Other Decathlon marketplaces need separate affiliate review.
Check address and product restrictions at checkout.
Price, last 90 days
Lowest recorded shop price · EUR90-day low: 23,00 €; average: 23,89 €. Today from 23,00 €, the lowest we have recorded.
Fact sheet
Details
- Brand
- Under Armour
- Style code
- 3027103-101
- Colourway
- Castlerock/Anthracite
- Released
- 17 Jan 2024
- Retail price at launch
- ≈ 55 $
- Upper material
- Mesh
- Manufacturer
- Under Armour Europe B.V., Stadionplein 10, 1076 Amsterdam - NL, Terms%20and%20Conditions%20of%20Use%E2%80%9D
- Gender
- Kids
Availability by size
8 sizes are in stock, from 35½ to 40. The easiest to find is 38½, at 2 shops. 35½, 36, 36½ and 37½ and 3 more are at one shop only. The cheapest shop changes with the size: 2 different shops today, so pick your size before you compare.
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 |
|---|---|---|
| 35 1/2 | 3.5 | 3 |
| 36 | 4 | 3.5 |
| 36 1/2 | 4.5 | 4 |
| 37 1/2 | 5 | 4.5 |
| 38 | 5.5 | 5 |
| 38 1/2 | 6 | 5.5 |
| 39 | 6.5 | |
| 40 | 7 | 6 |
Reference conversions only; this chart does not measure your foot or describe product fit.
About this product
This Under Armour Surge 4 AC GS came out in 2024 for younger wearers, using a breathable mesh upper that creates a light, airy feel. The Castlerock and Anthracite combination leans towards understated grey tones, with the darker shade adding visual depth. The subtle palette and practical mesh texture give the youth shoe a straightforward everyday character.
Same shoe, other colours
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|---|---|---|---|---|---|
| From today | 23,00 € | 29,95 € | 76,99 € | 35,80 € | 80,00 € |
| Shops | 2 | 8 | 7 | 6 | 6 |
| Released | 2024 | — | — | — | — |
| RRP | ≈ 55 $ | — | ≈ 120 $ | — | — |
| Material | Mesh | — | Mesh | — | — |
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