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The Ultra Boost line was born in 2015 and revolutionized running by introducing Boost foam, a technology that returns energy with every step and forever changed the way we run. For this collaboration, adidas joined forces with the Mexican collective Hermanos Koumori, known for its focus on "sensory engineering" under the motto "run with the mind". The design is inspired by the Monte Alto nature reserve in Mexico, drawing on the leaves, rocks, and minerals found in its surroundings. The Wonder Aluminum colorway brings these mineral tones to the streets, with a metallic gray finish that unites nature and textile engineering.
The Ultra Boost 5 silhouette retains the DNA that made the line iconic: a substantial Lightboost midsole designed to absorb impact and return energy, paired with a rubber outsole with zonal traction for demanding surfaces. In this version, the reconstructed upper combines a ripstop nylon base with seamless TPU reinforcements that divide colors and textures, providing extra durability for outdoor runs. The Hermanos Koumori logo appears on the lateral toe box, accompanied by the phrases "Scispiritual Engineering" and "run with the mind" on the sides, completing the identity of this collaboration.
100% new and authentic, verified before shipping. You have 14 calendar days to return all your purchases, plus fast shipping to Spain and the rest of Europe.
Their aluminum-gray palette makes them highly versatile: they pair just as well with technical joggers and a windbreaker for an outdoor look as they do with jeans and a sweatshirt for everyday wear. Discover more running models in our Adidas collection.
Earn at least 249 Steps with this purchase Earn 249 Steps with this purchase
Why buy from Next Step
We started in Barcelona 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
100% authenticity guaranteed
We inspect every product in our warehouse before it ships. Only what passes gets the tag.
How we verifyOwn stock + European network
What we don't have in stock, we source for you through our European supplier network, at the price you see today.
About usFast delivery
Tracked shipping across the EU and 14 days for exchanges and returns.
How pre-orders workSecure payment
Pay now, in 3 interest-free installments or in 4 installments. Payment methods
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.
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):
Do you need it by a specific date? Ask us on WhatsApp before buying, and we’ll confirm whether it will arrive on time.
Free shipping in mainland Spain on orders of €99.99 or more (€6.95 on smaller orders). Mainland Portugal: €11.95. Rest of the European Union: from €14.95. Balearic Islands: €9.95. 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.
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.
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.
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.
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.
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.
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.
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