Duotone Foil Assist Set D/LAB

The Foil Assist Set D/LAB includes the following:

eMast D/LAB Set

Made from lightweight carbon fiber and measuring 84 cm in length, the eMast D/LAB is the lightest and most advanced model in the Foil Assist series. It is designed for outstanding performance and control, and its sleek, drag-reducing profile ensures playful and precise turns, extreme stiffness, and maximum speed.

The motor is seamlessly integrated into the mast’s profile and positioned 17 cm below the top plate, minimizing drag—even during touchdowns. It features a two-blade folding propeller that reduces drag for effortless gliding on the wave. Thanks to the integrated gear system, the propeller instantly unfolds again, making the transition completely smooth when you leave the wave and need to go out again with motor assistance.

The eMast mounts on your board and fuselage just like a regular foilmast and is compatible with foilboards from most brands.

Tip: For optimal battery performance, a front wing of at least 900 cm² and a board with a minimum of 35 liters volume are recommended.

Note: The eMast D/LAB has a 3BS connection and is compatible with Duotone and Armstrong foils when used with our specially designed fuselage.

eHarness Set

The Foil Assist system is powered by two compact batteries placed in a waterproof box mounted on a lightweight eHarness (approx. 3.76 kg). This keeps your board free from extra weight and drag. By carrying the batteries on your hips, the natural and fluid foiling feeling is preserved while giving you full freedom of movement. The eHarness is buoyant and easy to remove. A cable runs discreetly along the short board leash, connecting the batteries to the eMast. A receiver integrated into the battery box ensures a stable and reliable connection between the remote control and motor throughout the session.

eRemote Watch Ring Set

The Foil Assist Remote – a waterproof smartwatch-style remote with a finger ring – keeps your hands free, making it easier to pop up on the board, paddle, duck dive, carve, or handle a wing. The motor is activated with a double click on the + button, and speed is controlled by holding either the + or – button.

Battery Charger Set

The charger can fully charge both batteries in under an hour and also has a discharge function that helps preserve the batteries’ long-term durability.

Flight-safe batteries

Depending on your level, setup, and conditions, the Foil Assist batteries provide 30–60 minutes of runtime per charge. Plus, they are made in a size that allows you to bring them on flights!