Spiuk nervio mtb spd shoesspanish brand spiuk has been producing high quality performance ready goods for over twenty years they have a fixed focus on quality materials that is immediately evident in this top of the range water resistant mtb shoe breathable robust and stiff mtb shoethis heavy duty mtb shoe is versatile and comfortable featuring a multi purpose rubber sole for superb grip and traction the nervio is an mtb shoe with excellent breathable properties to keep your feet cool and