Stone MSWS Pro Four is the official sock designed by Lurbel in collaboration with Merrell Skyrunner World Series for the 2026 season. A special edition born to compete in the world skyrunning circuit, where the terrain is uneven, the effort is high, and the foot needs constant protection. Two color combinations, one unique goal: to dominate the most demanding distances feeling always in control.
Its construction is designed for the mountain and for the pace of the race. The seamless perimeter minimizes friction points, while the asymmetrical L/R structure improves the natural fit of the foot. It incorporates self-ventilating zones in high-sweating areas to accelerate moisture escape, and a dual-density cuff that reinforces hold without creating pressure, keeping the sock stable when climbing, descending, or changing support.
At its technical core works the Bmax Tetra, a combination aimed at protecting the skin of the foot against the three main factors that promote blisters and chafing: overheating, moisture, and friction. Regenactiv® acts directly on the skin helping to reduce irritation and heat sensation from rubbing, while a multi-channel structure expels sweat quickly to maintain a drier environment under high intensity. The result is sustained comfort when the race extends, and the foot starts to ask for respite.
Below the foot, the plantar structure AWC (Air Waves Comfort) elevates performance in the mountains with an optimized cushioning system that combines relief waves and integrated ventilation channels. The waves provide soft cushioning that absorbs impacts on uneven terrain without adding weight, and the channels facilitate rapid moisture dissipation to keep the foot drier and more stable on every ascent. All in a piece created for the world circuit: demanding, technical, and ready to go far.
The Lurbel Stone Pro trail running sock is the ideal option for those who run in the mountains and seek a comfort and performance experience over long distances. Its design incorporates advanced materials and state-of-the-art technology to ensure the best protection and ventilation with every step.
| Features | Specifications |
|---|---|
| Product Type | Trail running sock |
| Recommended Use | Mountain runners, distances of 20 to 25 km |
| Technology | Bmax, AWC, ESP |
| Material | Ionized silver polyamide |
| Properties | Antibacterial, cushioning, breathability |
The Lurbel Stone Pro Four Sock positions itself as a crucial element for mountain runners, integrating a series of technologies that ensure not only comfort but also optimal performance during the run. One of the standout aspects of this model is its Bmax technology, which regulates foot temperature, combating overheating and moisture. This is especially important on long runs where foot comfort can determine running success.
The implementation of the AWC system offers effective ventilation and notable cushioning on the footbed, providing a better experience with each stride. Thanks to this, runners can enjoy a feeling of freshness and support that translates into better performance. This runner-focused design has been optimized to minimize discomfort often associated with long distances, such as blisters, a common problem among athletes running for hours in challenging conditions.
Additionally, the use of ionized silver polyamide gives antibacterial properties to the Lurbel Stone Pro socks, making each intensive workout one less hygiene concern. By neutralizing the growth of odor-causing bacteria, runners can focus on maintaining their performance without the fear of facing uncomfortable situations due to bad odors associated with sweat and moisture.
The ergonomic design of the sock ensures that high contact areas with shoes are protected, reducing friction that can cause injuries. In fact, the additional anti-slip fit contributes to a safer and more effective running experience, allowing runners to concentrate on the scenery and the challenge of the trail rather than worrying about their gear.
Moreover, this model has been designed to fit the foot perfectly, preventing slipping and providing the necessary stability. This innovative approach is not only beneficial for performance but also allows for greater freedom of movement, essential for trail running.
In summary, the Lurbel Stone Pro Four Sock combines multiple advanced technologies and meticulous design, offering mountain runners a product that not only meets but exceeds expectations. With every stride, users can feel the significant difference of a sock that is thoughtfully designed to maximize the joy of running.
