Joma launches the RS-9000: the world's lightest racing shoe
The new Joma RS-9000 is set to revolutionize running: just 126 grams, a carbon plate, and a price never seen before for a competition shoe from the Spanish brand.
They were born in Toledo, weighed 126 grams, and were ready to change the rules of the game.
This is how they are presented RS-9000, the most ambitious bet of Joma To date, a shoe designed in its Portillo de Toledo laboratory to push running performance to the limit, combining lightness, stability, and responsiveness.
The Spanish brand's R&D team has worked for months on every detail of the design, evaluating materials and structure with professional athletes such as Chiqui Pérez y Stella Rutto.
The result is a model that places Joma squarely among the elite of competition footwear.
126 grams and a mission: to break the limits of speed
With scarcely 126,1 gramsThe RS-9000 is the lightest shoe on the market. Its secret is in the midsole. Light Reactive, a special compound of Injected PEBAX offering firm yet highly responsive cushioning.
The stride is direct, fast, and stable, ideal for runners with refined technique who seek pure speed.
The drop is 8 mm (28 mm at the heel and 20 mm at the forefoot), providing a natural push-off with every stride. It's not a maximalist shoe, but a low-profile flyer that prioritizes responsiveness over soft comfort.
Carbon plate and ultralight upper
Inside, the carbon fiber plate It has been designed with controlled flex, less rigid than other models, which improves the feeling of protection without sacrificing reactivity.
El upper is another of the great advances: woven with thread of nylon reinforced with polyamide, firmly envelops the foot and promotes ventilation.
The tongue, heel, and laces are minimal, and there's no insole. All designed to shave weight and maintain maximum connection to the terrain.
CPU sole and design for expert runners
The outsole abandons traditional rubber to incorporate CPU, an ultralight and durable material strategically placed in high-wear areas. Its microsphere tread pattern guarantees grip and performance even on wet asphalt.
The RS-9000 is designed to experienced runners, with efficient midfoot technique and fast rhythms —below 3: 30 min / km—.
Its best terrain: short and medium distances, from 5K to half marathon, although elite athletes can even push them to the limit over 42K.
A technological jewel made in Toledo
The development of the RS-9000 has been entirely Spanish. From the first sketches to field testing, the entire process has been carried out in the J Lab, Joma's innovation center in Toledo.
The price of EUR 300, the RS-9000 places itself in the same league as the great international flyers.
But it does so with a clear statement: to demonstrate that “Made in Spain” technology can compete head to head with Nike, Adidas or Asics in the most exclusive segment of running.
Technical sheet – Joma RS-9000
| Feature | Detail |
| Weight | 126,1 grams |
| Drop | 8 mm (28/20 mm) |
| License plate | Flexible carbon fiber |
| Foam | Light Reactive (injected PEBAX) |
| Upper | Nylon with polyamide reinforcement |
| Sole | Ultralight CPU |
| Price | €300 (joma-sport.com) |
| Designed for | Fast and technical runners |
| Ideal distances | 5K – 21K (up to elite marathon) |
Conclusion
The Joma RS-9000 They are not a shoe for everyone, but for those who seek to go further.
Their record-breaking weight, flexible carbon plate, and minimalist design make them a bold proposition that places Joma among the great names in performance. Born in Toledo, designed to fly.
More info in the Official Site
