Endless adventures: The AERTIS MTB shoes by SIDI combine efficiency and flexibility with comfort and stability - for bike days to suit your taste. Whether on the bike or on walking sections, the MTB SR 17 SOLE does a good job. The grippy plastic inserts, that can be optionally upgraded with studs, and the rubberised SIDI logo, too, provide ideal grip on rough terrain - including efficient power transfer directly onto the pedal. In addition, the FIRMORE CLOSURE system ensures high lateral support for more comfort and support. In addition, you can rely on proven SIDI features such as the intuitive and precisely adjustable TECNO-3 dial and the lightweight and robust POLITEX upper. So get on your bike! FIRMOR CLOSURE: For athletes who want ideal power transfer with high lateral support: Shoes with this closure system offer high lateral stability, combined with an ideal fit for a feeling of safety and comfort. MTB SR 17 SOLE: Nylon sole with grippy plastic inserts and rubberised SIDI logo i...