The Zero-II Nack was designed with a base made up of varying densities of carbon. This construction allows the saddle to flex in the less dense midsection, while retaining solid support in the more densely designed paddle (widest section).
The base is supported by Prologo's Nack 10 rails. Though they are a bit heavier than a carbon fiber rails, Nack 10 rails use Kevlar and small particles of aluminum which increase strength around the clamp points and add to the durability of the rails. Layered on top of the base is light foam padding, which was then wrapped in a microfiber cover.
Learn more, with the Prologo Buying Guide.
Buy Prologo Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
If you're not completely satisfied with an item you may return it within 12 months of purchase. We'll give you a full refund if the item hasn't been used or the component hasn’t been fitted.More information on returns