PROLOGO PROXIM NEMBO TIROX 145 SLIDE CONTOL BLACK Tower of London Facts Mental Floss. A model with a racing soul, at the top end of Proxim`s Performance line, designed for gravity disciplines, from All mountain to Enduro, to Downhill 3D `Slide Control` technology on the cover, increases the grip on the saddle, further increasing the control of the bike during both pedaling and off saddle riding Padding is made up of variable density foams to provide maximum support and ensure optimum comfort while pedaling, absorbing vibrations and shocks The base is made of carbon injected nylon and features increased thicknesses for more flexibility and strength, key features for gravity use Features a wide central channel, along the entire length of the saddle, with the Active Base system that can reduce pressure points but still provide good protection from dirt and stones lifted from the rear wheel