New Balance 509 Thunder Brown
Earn at least 179 Steps with this purchase Earn 179 Steps with this purchase
Description
Color: Thunder Brown
Sku: U50920U
New Balance 509 Thunder Brown — The Forgotten Dad Shoe of the 2000s
The 509 is one of those silhouettes that New Balance had in its catalog in the early 2000s and that went completely unnoticed at the time. Its mix of technical mesh, streamlined overlays, and those curved lines running along the side of the midsole perfectly captures the design language of that era. The brand has brought it back in recent years, including through high-profile collaborations, and Thunder Brown is its warmest version.
The 509 — Mesh, Curved Lines, and ABZORB
The silhouette retains its original shape: a predominantly mesh upper with contrasting technical panels and those curves drawn across the midsole that give it visual movement. In Thunder Brown, brown covers most of the upper, while dark details define the structure in a deliberately understated style.
Materials and Technology
- Upper: Technical mesh in Thunder Brown with streamlined synthetic overlays; integrated lateral “N” in the paneling
- Interior: Textile lining; padded collar and tongue; removable insole
- Outsole: ABZORB cushioning for impact absorption; rubber outsole with block lugs in the forefoot and horseshoe-shaped traction pods in the heel
Why Buy the New Balance 509 Thunder Brown at Next Step?
It is one of New Balance’s silhouettes offering the best balance of comfort and exclusivity. At Next Step, you get it 100% brand new and authentic, with 14 calendar days for returns from receipt and fast shipping to Spain and across Europe.
How to Style the New Balance 509 Thunder Brown
Brown pairs well with ecru, beige, olive green, and dark denim. It is a medium-volume dad shoe, so it works well with wide-leg or straight-leg trousers. Discover more styles in our New Balance collection at Next Step.
Why buy from Next Step
Every product checked by hand before it ships
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
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: €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.
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.



