Kaohi Board Leash -Double Coil 5.5mm

The Kaohi Board Leash Double Coil 5.5mm is a foil-specific leash built around a patent-pending double coil design from Board Meeting USA. The name "Kaohi" translates to "control," and the leash is engineered for prone foiling, wing foiling, and SUP foiling. Rather than a single coiled cord, the double coil configuration wraps the urethane cord in two parallel spirals, which addresses a common complaint with traditional coil leashes — persistent kinking and self-tangling. The 5.5mm cord diameter sits on the lighter end of Kaohi's lineup, prioritizing low drag and minimal weight while still handling the loads generated during foiling.

• Cord diameter: 5.5 mm
• Available lengths: 4 ft, 6 ft
• Cuff options: 1.5" ankle or 1.5" calf
• Colors: Black, Neon Green, Orange (additional colors at select retailers)
• Patent status: US patent pending

The 5.5mm Double Coil is aimed at intermediate to advanced foilers who ride smaller boards and want a leash that stays compact and out of the way. Prone foilers, in particular, benefit from the thinner cord and shorter length options — the 4-foot version keeps the leash well clear of the mast and fuselage during tight maneuvers. Wing foilers who prefer a lightweight board leash over a heavier-gauge option will also find the 5.5mm appropriate for moderate conditions.

Riders who regularly session in larger surf or more powerful wind may want to step up to the Kaohi 8mm Grip Leash, which is designed for heavier loads. The 5.5mm version is tuned more for agility-focused sessions in moderate conditions where minimizing drag matters most.

Within the Kaohi range, the 5.5mm Double Coil sits as the lighter-duty board leash option. The brand also produces a 7mm and an 8mm Double Coil Grip Leash for riders who need a thicker, more robust cord in demanding conditions. The 5.5mm model is specifically a board leash — Kaohi sells a separate wing leash variant with a wrist cuff for attaching directly to a wing.

In the broader foil leash market, the double coil concept competes with standard coil leashes from brands like Dakine and Ocean & Earth that are commonly repurposed from surfing. The Kaohi's differentiation centers on the tangle-resistant double coil geometry, which was designed from the ground up for foiling rather than adapted from a surf leash. At $45–$48 depending on the retailer, it sits at a modest premium over generic coil leashes but remains in line with other foil-specific accessories.