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

The Kaohi Double Coil Ankle Leash in 6' x 5.5mm is a foiling-specific board leash built around a double-coil cord design. Kaohi — a Hawaiian word meaning "control" — is a brand distributed by Board Meeting USA that focuses exclusively on leashes for foil and surf disciplines. The 5.5mm Double Coil sits at the lighter end of Kaohi's lineup, using a thinner cord diameter than the brand's 7mm and 8mm Grip models to keep weight and water drag low during fast-paced sessions. A U.S. patent covers elements of the coil construction.

• Cord diameter: 5.5 mm
• Length: 6 ft
• Cuff: 1.5" ankle
• Color: Blue (also available in Black, Light Blue, Neon Green, Pink, Orange)
• Also available in: 4 ft length
• Patent status: U.S. patent pending

The 5.5mm Double Coil is aimed at prone foilers, wing foilers, SUP foilers, and downwind riders who want a lightweight leash that stays compact while on foil. The thinner 5.5mm cord produces less drag than Kaohi's 8mm option, making it a practical choice for riders on smaller boards who prioritize agility and minimal resistance. It suits intermediate to advanced foilers who are comfortable managing their board in open water and prefer a streamlined connection over a heavier-duty tether.

The 6-foot length is short enough to reduce the risk of the cord wrapping around a mast or fuselage during a fall, while still giving adequate separation between rider and board on impact. Riders who need extra security in larger surf or stronger currents may prefer the thicker 8mm Grip model, but for moderate conditions and lighter gear, the 5.5mm balances durability with low profile.

Kaohi's Double Coil range spans three cord thicknesses. The 5.5mm Board Leash ($48) is the thinnest and lightest option. The 7mm Grip Leash ($50) adds the brand's patented rail-saver handle and a slightly heavier cord, while the 8mm Grip Leash ($54–$56) is the heaviest-duty choice, available in 6- and 7-foot lengths for riders in more demanding conditions. Kaohi also offers a dedicated Wing Leash at 5.5mm with a wrist cuff option, and the INVIZ Mini, a hybrid coil-bungee design aimed at advanced prone and foil-assist riders.

In the broader foil leash market, the Kaohi Double Coil competes with coiled leashes from Dakine and Ocean & Earth, but differentiates itself through the double-coil construction that is specifically engineered to reduce the self-tangling common in single-coil designs. For buyers already using a standard coiled surf leash and finding it tangles around foil components, the Kaohi's twin-coil layout addresses that problem directly.