Kaohi Double Coil Ankle Leash-Black-6' x 5.5mm

The Kaohi Double Coil Ankle Leash in Black (6' x 5.5mm) is a foil-specific board leash made by Board Meeting USA under the Kāohi brand — a name drawn from the Hawaiian word for "control." Designed in the USA, this leash targets prone foilers and wing foilers who need a lightweight, tangle-resistant tether between rider and board. The double-coil construction differentiates it from standard single-coil leashes by using two parallel coiled cords that work together to reduce the kinking and self-tangling common with traditional coil designs. A US patent is pending on the foil-specific double-coil layout.

At 5.5mm cord diameter, this is the lighter option in the Kāohi double-coil range, sitting below the beefier 8mm version the brand recommends for heavier wing-board setups. The thinner cord keeps weight and water drag low, which matters when riding smaller prone foil boards where every bit of resistance is noticeable.

• Cord diameter: 5.5 mm
• Length: 6 ft
• Cuff type: 1.5" ankle cuff
• Coil style: Double coil (US patent pending)
• Available colors: Black, Light Blue, Neon Green, Orange, Pink
• Available lengths: 4 ft, 6 ft
• Alternate cuff options: Calf cuff, wrist cuff (sold separately)
• Construction: High-strength urethane cord, heavy-duty stitching, brass or 316 stainless steel swivels

This leash suits intermediate to advanced foilers who ride smaller boards and prioritize a clean, low-drag connection. Prone foilers in particular benefit from the 5.5mm thickness — it stays light on the ankle and keeps the cord out of the water during pumping and gliding. Wing foilers on compact boards can also pair it with the wrist cuff option to keep their wing secured without the tangle issues that single-coil leashes often introduce around the mast and fuselage.

Riders on larger, heavier wing boards or those frequently foiling in bigger surf may want to step up to the 8mm double-coil model for added strength. The 5.5mm is built durable — heavy-duty velcro closures, double stitching, and stainless steel swivels — but its sweet spot is sessions where agility and minimal drag outweigh brute pulling strength.

Within the Kāohi range, the Double Coil 5.5mm sits as the performance-oriented option for smaller boards and lighter loads. The brand also offers an 8mm Double Coil for heavier gear, straight leashes for traditional surfboard setups, and the INVIZ Mini Leash — a hybrid polyurethane-coil-and-bungee design aimed at downwind foiling where minimal bulk is critical. The Kāohi continuous-coil and wing-specific leash lines round out the catalog for riders with different attachment needs.

Compared to competitors, the double-coil design addresses a common complaint among foilers: standard coil leashes kink and wrap around hydrofoil components. Riders cross-shopping foil leashes will often see single-coil alternatives from brands like Dakine or Ocean and Earth priced similarly, but the twin-coil layout and foil-specific engineering set the Kāohi apart in this niche.