- The upper part of the sail defines the control characteristics of a sail. To maximise handling, the use of the lightest materials in the main body reduces the weight of the sail.
- The center section generates the power of the sail and dictates how easily the sail can be seen through.
- The Dacron is softer and has increased stretch characteristics. This creates a greater forward traction profile as the sail inflates.
- Resistant materials are kept lower in the sail, the area traditionally prone to damage with knee and harness hooks.
- Twisted fibres and stronger yarns are combined with thicker films for maximum durability.
- This extra weight is kept lower in the sail, so it does not affect the weight of the sail and the feeling of lightness.