Not sure about the size?
Please follow the instructions below- Remove the insole from a pair of shoes that fit you well.
- Use a ruler or measuring tape to measure the insole.
- Measure from the farthest point of the heel to the farthest point of the toe (as shown in the image).
- Use the size chart to find your size based on the length of the insole.
- That's it! You now know your ideal size!
| BR | US M | US W | EU | Insole Length |
|---|---|---|---|---|
| 34 | 4 | 5,5 | 36 | 23 cm |
| 35 | 4,5 | 6 | 37 | 23,6 cm |
| 35,5 | 5 | 6,5 | 37,5 | 24 cm |
| 36 | 5,5 | 7 | 38 | 24,3 cm |
| 36,5 | 6 | 7,5 | 38,5 | 24,7 cm |
| 37 | 6,5 | 8 | 39 | 25 cm |
| 37,5 | 39,5 | 25,4 cm | ||
| 38 | 7 | 8,5 | 40 | 25,7 cm |
| 38,5 | 7,5 | 9 | 40,5 | 26,1 cm |
| 39 | 8 | 9 | 41 | 26,4 cm |
| 39,5 | 41,5 | 26,8 cm | ||
| 40 | 8,5 | 10 | 42 | 27,1 cm |
| 40,5 | 9 | 10,5 | 42,5 | 27,4 cm |
| 41 | 9,5 | 11 | 43 | 27,8 cm |
| 41,5 | 43,5 | 28,1 cm | ||
| 42 | 10,5 | 12 | 44 | 28,4 cm |
| 42,5 | 10,5 | 12,5 | 44,5 | 28,7 cm |
| 43 | 11 | 13 | 45 | 29 cm |
| 43,5 | 11,5 | 13,5 | 45,5 | 29,3 cm |
| 44 | 12 | 14 | 46 | 29,7 cm |
| 45 | 13 | 15 | 47 | 30 cm |
| 46 | 14 | 16 | 48 | 30,4 cm |
| 47 | 14,5 | 16,5 | 49 | 30,7 cm |
Rio Black Purple
30% off
Color
CORE FEATURES
SmoothFoam ™ Midsole.
Ultra lightweight and super comfortable.
Vegan and Sustainable: Suede made of recycled PET.
Weatherproof: Water repellent materials.
Ortholite ® insoles for superior comfort.
DESCRIPTION
Our shoes are super lightweight and they were designed to provide superior comfort. Ethically made in Brazil under fair conditions for workers. Using recycled and natural materials.
CARE GUIDE
We recommend removing the insoles (if removable) and shoelaces before cleaning.
Wash your sneakers using cold water and, if necessary, mild soap (as little as possible).
Use a soft toothbrush to gently scrub areas with heavier dirt.
Let them air dry in a shaded, well-ventilated place.
Avoid:
Washing machines
Dryers
Hot water
Direct sunlight for drying
SHIPPING
Shipping costs may vary depending on the delivery location.
Orders are mostly shipped from Portugal, and customers with a delivery address within the EU will not be charged any additional duties or import fees.
For non-EU countries, additional import duties or taxes may apply, depending on local customs regulations.
We offer free shipping on orders over €100 — except for deliveries to the USA.
RETURNS
If for any reason you’re not completely satisfied, you can return your pair of UNDO shoes — and we’ll gladly exchange them.
You have up to 30 days from the delivery date to request an exchange. You may exchange your pair for a different size and/or color. Please note that items must be in new condition and in their original packaging to be eligible for exchange.
All returns are sent back to our warehouse in Portugal, except for orders shipped to the United Kingdom and United States.
The return shipping costs, as well as any applicable duties or taxes, are the customer’s responsibility.
Important note for customers in the United States:
Due to new tariffs and additional logistics costs, we’re unable to cover exchange shipping fees. Customers will be responsible for both the return shipping cost and the shipping cost of the replacement pair.
Rio’s Rhythm
More than inspired by the Marvelous City, RIO is an invitation.
An invitation to live the city fully — with your feet on the asphalt, the hot sand, the wet stones, on the old sidewalks and the steep slopes that rise and fall between the hills and the sea.
Because in Rio, every step has rhythm —
and now, you can wear yours too.
Comfort and Lightness
The even softer Smoothfoam™ technology in the RIO, combined with the thickest insole we’ve ever used, delivers an extraordinary level of comfort. The lightness of the Carioca lifestyle takes shape in the ultra-lightweight structure of the shoe — a sensation like walking on clouds, made for those who value freedom and well-being.
Rio impresses at first sight. But transforms through experience.
Rio de Janeiro is a setting that captivates instantly, but only reveals its true essence over time. Visitors see beauty. Locals feel identity. In this one-of-a-kind place on the map, dreaming and living merge into a marvelous reality.
Rio is more than a city — it’s a movement. A style born from the heat, the ease, the rhythm of life.
Here, fashion doesn’t come from shop windows. It flows from the hills, crosses the beach, passes through street markets, celebrates in the open, and weaves through the city in a thousand different styles. It was in this vibrant mix of colors, rhythms, and contrasts that RIO was born — the sneaker that moves with the rhythm of the city.
Focus on detail and premium materials
As is tradition at UNDO, the RIO is crafted with premium materials, chosen with intention.
Every detail is designed to blend style, attitude, comfort, lightness, and sustainability.
The contrast between natural textures and cutting-edge finishes creates a unique identity — just like Rio de Janeiro.
Rio: it’s not just about “Rio fashion.” It’s about carrying a piece of Rio with you.
Inspired by the unique rhythm of Rio de Janeiro, RIO translates the city’s essence into shape, color, and lightness — bringing to life its freedom, contrasts, and authenticity.
The colors of the collection are not random — they reflect the everyday rhythm of Rio.
The beat of a sunset samba.
The breeze along the boardwalk.
The warmth of the sand under the sun.
The shimmer of nighttime lights dancing over the sea.
Each combination expresses a rhythm, a movement, a feeling.
Recycled Rubber
In addition to the already famous sole made from leftover party balloon production, the outsoles used in the RIO collection incorporate other recycled materials, such as tire powder and rubber scraps from other products.
Walk on Clouds
SmoothFoam™ midsole with an enhanced compound for an even softer feel. The 6mm antibacterial foam insole further boosts comfort.
Functional Aesthetics
The perforations on the upper aren’t just for looks — they enhance the sneaker’s breathability, helping keep your feet cool and comfortable, even on the hottest days.
