Spiuk Altube Road Carbon Matt Black Shoes The Altube shoe has a competitive and dynamic character. Its design and construction, based on quality and attention to detail, convey security and refinement. Spiuk Altube Road Carbon Matt Black Shoes The Altube shoe has a competitive and dynamic character. Its design and construction, based on quality and attention to detail, convey security and refinement. The BOA® closure ensures a comfortable and precise fit, thus achieving maximum performance with each pedal stroke. Its versatility derives in 4 versions adapted to different uses: Pro-competition, Pro-XCountry, road and MTB. The RC version is intended for use in road competition, and is also the ideal solution for expert cyclists looking for maximum performance. Thanks to the RLX1® sole made of carbon fiber construction, it ensures maximum transmission of pedaling power, optimizing efficiency and performance. ● Resistant and easy to clean. ● Drilling Shell System technology, with direct breathability through perforations. ● Precision adjustment by BOA® system. Power Transfer Strap on the front to complete a comfortable and precise fit. ● RLX1® carbon fiber sole. It incorporates air inlets for direct ventilation of the plant. ● Includes two pairs of insoles, adapted to different weather conditions.