Whatever the journey may be, Aertis is here to make it easier and better. The comfort of a premium suede construction meets Fiirmor technology, which provides lateral support. The nylon sole with a removable rubber insert ensures maximum grip in any situation and enhanced walking comfort.

The new Sidi MTB sole is lighter and more efficient, made from nylon with PU inserts. The shape of the sole profile has been specifically designed for mountain biking, allowing for good grip, facilitating mud distribution, and providing the right stability. The central insert featuring the Sidi logo is slip-resistant and particularly practical and useful for less experienced users. The toe area, which is especially stressed while walking, can be replaced with screws and still offers the option to attach crampons to improve traction on particularly muddy surfaces. SR17 represents the ultimate result in terms of stiffness while pedaling and flexibility while walking.

The TECNO-3 system adjusts the fit along the entire length of the shoe and the upper material for a customized fit to the shape of the foot. The well-known reliable and interchangeable closures from SIDI are enhanced by a completely new, proprietary SIDI wire material that allows for intuitive and effortless adjustments in no time.