The Zero saddle has been designed with a flat shape perfect for fast road riding. The flat shape is most suited for cyclists with good lumber flexibility and allows easy movement of seating position, making it ideal for experienced riders that like to change position to really put the power down.The PAS system is a channel in the base of the saddle. The hole or channel helps to maximises blood flow and supports the pelvic area while also preventing pressure peaks. This system is designed and developed to eliminate pressure and numbness to areas that need it most.Using Prologo's C3 (Carbon Composite Compound) which is a technology that involves a carbon fibre monocoque construction, offering ultra-light performance that is structurally more solid than conventional materials currently used on the market. This innovative process allows the manufacturing of products that can be as little as 149g and increases the mechanical resistance over 13%. These features combined with the high density padding, allow C3 saddles to achieve a high level of performance and comfort. Making a saddle that has an incredibly light weight but maintains the stability and performance of a heavier saddle.CPC: Connect, Power Control: Prologo patented technology. The specially designed CPC surface features a mat of hollow cones of various heights and diameters, arranged for maximum benefits to the rider. These include optimum grip, shock absorption and air cooling. It also enhances blood flow through a massaging action, reducing numbness and tendon related discomfort. The Zero saddle uses Prologo's ESD technology. Ergonomic Shape Design is where Prologo have identified a new ergonomic design for the centre of the saddle, which allows more space for your legs and an overall better cycling position. Further to this, the ESD reduces the friction of the quadriceps against the body of the saddle.**Specs*** Size: 270x132mm* Rail: Nack Carbon 7x9.3mm* Cover: Microfibre + CPC* Padding: Light Foam* Weight: 154g