Adidas Climacool Grey Four Core Black
Description
Color: Grey Four/Core Black/Grey Four
Sku: KJ8978
Adidas Climacool Grey Four Core Black — The 3D-printed sneaker you can buy
On May 2, 2025, adidas launched the Climacool globally, its first fully 3D-printed sneaker intended for the general public. It was developed with Carbon, the Silicon Valley company specializing in digital light synthesis, and is manufactured as a single lattice-structure piece: there is no separate upper, midsole, or outsole. The Grey Four Core Black is its most understated version.
The Climacool — one piece, 360-degree ventilation
With no laces or seams, you slip it on like a clog, while the lattice itself provides support, cushioning, and ventilation all at once. Air channels run through the sneaker across 360 degrees and, according to adidas laboratory tests, keep the surface of the foot around 3 ºC cooler. Each pair takes around 24 hours to print. Here, Grey Four covers the structure and Core Black finishes the base.
Materials and technology
- Upper: 3D-printed lattice structure in Grey Four made using digital light synthesis, with no seams or bonded pieces
- Interior: The same lattice, with variable density depending on the area to support the foot without an additional lining
- Outsole: Integrated Core Black base, with cushioning defined by the geometry of the print itself
Why buy the Adidas Climacool Grey Four Core Black from Next Step?
It is one of the very few fully 3D-printed sneakers sold to the public, and its production is inherently slow. At Next Step, you get them 100% new and authentic, with 14 calendar days for returns from receipt. Fast shipping to Spain and throughout Europe.
How to style the Adidas Climacool Grey Four Core Black
The combination of grey and black lets the texture take center stage: wide-leg black trousers, a grey tracksuit, or technical tailoring. Keep the clothing plain. Discover more styles in our Adidas collection at Next Step.
Why buy from Next Step
Every product checked by hand before it ships
We started in Granollers as a sneaker and streetwear store. Today we ship across Europe, and every order passes through our team's hands before it reaches you.

15,000+ products inspected
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100% authenticity guaranteed
Next Step Verified tag
We inspect every product in our warehouse before it ships. Only what passes gets the tag.
How we verify -
Own stock + European network
28,000+ products in stock
What we don't have in stock, we source for you through our European supplier network, at the price you see today.
About us -
Fast delivery
24-48h for stock, 1-10 business days for pre-orders
Tracked shipping across the EU and 14 days for exchanges and returns.
How pre-orders work -
Secure payment
Pay now, in 3 interest-free installments or in 4 installments. Payment methods
FAQ
The questions we’re asked most often before buying, answered in 30 seconds. Need more details? Check the full FAQ or ask our AI assistant on WhatsApp, available 24/7.
When will I receive my order?
Preparation: in-stock items leave the warehouse within 24–48 business hours. We source pre-orders for you within 1–10 business days.
Shipping (UPS, with tracking number):
- Mainland Spain and Portugal: 24–48 business hours
- Rest of the European Union: 2–4 business days
- Balearic Islands, Canary Islands, Madeira, Cyprus and Malta: 5–6 business days
Do you need it by a specific date? Ask us on WhatsApp before buying, and we’ll confirm whether it will arrive on time.
How much does shipping cost? Is there free shipping?
Free shipping in mainland Spain on orders of €99.99 or more (€6.95 on smaller orders). Mainland Portugal: €8.95. Rest of the European Union: from €15. Balearic Islands: €10. Canary Islands, Ceuta and Melilla: special rate (taxes not included).
We ship across the European Union (not to Switzerland, the United Kingdom, Norway or Iceland). You’ll see the exact amount at checkout after entering your address, before paying. Free shipping doesn’t apply to large Pop Mart figures.
Are your products 100% authentic?
Yes. All our products are new and 100% authentic. Every item is inspected by our team before shipping and gets the Next Step Verified tag, confirming it has been verified and shipped directly by us.
Plus, manufacturing defects are covered for 14 calendar days after delivery, and Swatch watches come with the official manufacturer’s warranty.
What if it doesn’t fit? Exchanges and returns
You have 14 calendar days from receiving your order to request an exchange or return.
Changing sizes is easy: request the return from your account under My orders, indicate the size you want in the comments, and as soon as we receive the item, we’ll send you the new size at no shipping cost. There’s no need to place a new order.
We’ll provide the return label via WhatsApp (SEUR or UPS in mainland Spain; UPS for all other destinations). Its cost is the standard rate for your area, for example €6.95 in mainland Spain. The item must be unused and have the Next Step Verified tag intact.
What size should I choose?
For each product, you’ll find the model’s size guide. Always use the European size (EU) as your reference: it’s the most consistent across brands.
Not sure between two sizes? Message us on WhatsApp with your height, weight, and usual size: our assistant will recommend the right size in seconds, at any time.
My size isn’t listed or is on pre-order—what should I do?
If a product is marked as Pre-order, it isn’t in our warehouse right now, but we source it specifically for you through our supplier network within 1–10 business days and keep you updated by email every step of the way.
If your size isn’t listed on the product page, message us: we’ll check whether we can get it and let you know.
What payment methods do you accept? Can I pay in installments?
Visa, Mastercard, Maestro, American Express, UnionPay, Apple Pay, Google Pay, Shop Pay, and PayPal, as well as local methods such as iDEAL, Bancontact, Blik, and Wero.
You can also pay in installments with Klarna (subject to availability in your country). All payments are processed securely through Shopify.
Any other questions? We’ll answer right away
Our smart assistant answers on WhatsApp 24/7: delivery times, sizes, stock, shipping, exchanges… And if you need anything else, a member of our team takes over in the same conversation.








