Whatever the journey, Aertis is there to make it easier and better. The comfort of a premium suede construction meets the Firmor technology that offers great lateral support. The nylon sole with replaceable rubber insert allows for maximum grip in any situation and increased walking comfort.

• Designed for maximum lateral support the Firmor Closure contours the foot with a solid hold, and allows infinite size adjustment for the ideal individual fit
• SIDI’s Tecno-3 System dials in fit along the entire length of the shoe, adapting the upper to the shape of the foot for a customized fit
• The closure uses a new proprietary SIDI Wire monofilament that is completely non-binding for intuitive and effortless on-the-fly adjustments
• Like most SIDI small parts, the Tecno-3 System is serviceable and replaceable
• The Sidi MTB SR17 sole represents the ultimate result in terms of stiffness for pedaling and flexibility for walking
• The toe inserts are easily replaceable and offer the possibility to mount spikes for particularly muddy rides