# Dimension T4.0 143
The Dimension saddle represents the pinnacle of Prologo's vision, achieved through meticulous analysis of every detail to create the most advanced and anatomically comfortable saddle.
The Dimension project aimed to deliver innovation in design, size, comfort, and performance. With a focus on comfort, performance, lightness, and preventing perineal area problems, the Dimension is designed to be a truly unisex saddle, providing pressure-relieving benefits to both female and male riders.
**Key Features:**
- **Design and Size:** Engineered for comfort during drops and aggressive riding, offering top-end performance and lightweight components.
- **Weight:** Weighing only 204g, it's a lightweight and ergonomic saddle suitable for high-end users.
- **Width:** The increased 143mm width distributes the weight of athletes over a larger surface for greater comfort over extended periods.
- **Short Nose:** The short nose, 3-3.5cm shorter than a traditional saddle, eliminates contact and pressure in the front area, especially when on the drops.
- **Anatomical PAS Channel:** The wide anatomical PAS channel along the central axis reduces the contact and compression of soft tissues and tendons.
**PAS System:**
- The PAS system, a channel in the base of the saddle, maximizes blood flow, supports the pelvic area, and prevents pressure peaks. This system is designed to eliminate pressure and numbness in critical areas. The PAS Technology is achieved through a specific anatomical design of the foam and base, ensuring performance and durability.
**Rail:**
- The Dimension T4 saddle uses a T4.0 rail, a Chromo-Molibdeno rail with very high tensile strength. It has a 7mm rail clamp diameter.
**Specifications:**
- **Size:** 245x143mm
- **Rail:** T4.0 Steel
- **Cover:** Microfibre
- **Padding:** Light Foam
- **Weight:** 219g