This ILCA Cunningham bundle includes everything you need for a clean, efficient, and high-performance primary downhaul setup. The kit features a professionally spliced 5 mm Marlow Dyneema SK79 primary line together with one 29 mm and one 18 mm PolarWave block, the preferred combination for modern ILCA Cunningham systems.

The SK79 primary line offers exceptional strength, low creep, and smooth handling under load. It arrives fully spliced and ready to go, ensuring fast installation and reliable performance from the first pull.

The included 29 mm and 18 mm PolarWave blocks allow the secondary line to run freely with minimal friction, giving you more precise control of sail shape across all wind conditions.

The secondary line system is not included and must be ordered separately.
This bundle supplies a white primary line, chosen specifically to avoid staining the sail — a known issue with dark grey or black primary lines.

Key features

• Complete ILCA Cunningham primary bundle

• Includes 29 mm PolarWave block + 18 mm PolarWave block

• Includes 5 mm Marlow Dyneema SK79 primary line, spliced and ready to use

• White colour prevents marking or discoloration of the sail

• Extremely strong, low-creep SK79 fibre

• Designed so the secondary line runs free and clean

• Ideal for high-performance ILCA downhaul setups

• Secondary line system not included

Why this bundle works

The combination of Marlow SK79 strength and PolarWave block efficiency produces a Cunningham system with smooth trim control, minimal friction, and zero sail staining. Everything arrives ready for installation, giving ILCA sailors a reliable, race-ready upgrade.