The semi-round shape of the Nago Evo is ideal for medium-to-long-distance riding, and is a perfect compromise between the round and flat models - the Tri40 is specifically developed for triathlon use in its shape and with the addition of Slide Control to prevent forward slippage.
Active Density: A new solution patented by Prologo that allows a new level of comfort. This system is actually a combination of Multiple Stiffness and Multiple Density.
Active Shape: The Ergo Evolution of Active Density. Ensures a new comfort and relief for male and female riders.
Slide Control: The ultimate system that allows you to keep the correct position on these models by avoiding sliding forward on the saddle.
Slide Protector: The small, smart solution to protect the sides of the saddle. It protects the saddle when the bike is leant against anything.
ESD: The easy stroke design. Prologo re-designs the transition area of the seating zone to give more space for the legs of the cyclist and give much better pedal strokes to give the correct saddle position.
Base Tech: Nack (NK) is a Nano carbon fibre rail with Kevlar and Aluminium filaments around the clamp area. Ti Solid is a full Titanium Rail. Ti 1.4 is a Titanium/Nickel mix.
PAS: The size and dimension of the slit are specifically designed to reduce pressure on cyclists perineal area, thus reducing the onset of inflammation or tenderness.