The Sidi Dominator 10 Shoes are an elite mountain shoe that features the technical innovations and comfort off-road cyclists covet with the durability they require. The MTB RS17 SOLE consists of a Nylon and PU blend. This sole is lighter than the traditional competition sole and has been updated with a more aggressive tread pattern and a replaceable toe tread insert. The sole is also more durable, completely non water-absorbent and mechanically stable, meaning it's less susceptible to changes in stiffness resulting from aging, prolonged usage, and changes in temperature or humidity. Tecno 3 Buckle System allows easy on-bike fit adjustment, while the Soft Instep 4 Closure System and padded tongue eliminate pressure points. The reinforced heel cup prevents power robbing heel lift and the ventilated synthetic upper delivers cool comfort.