2026 Duotone Foiling & Electric Foil Assist Set D/LAB

By Duotone

€5.999,00

Dydis

S-M L-XXL

Spalva

C99:random

Product variants

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After purchasing our goods, couriers will deliver them to your home or parcel locker within 2-5 business days. In order to receive your parcel in the shortest possible time, we recommend ordering goods before 12:00 on the day. However, this does not guarantee that you will receive the goods within 2 days, especially during the festive period, when parcel machines are overloaded and couriers' workloads are significantly increased. You can always track your parcels with the tracking number you receive. Pick-up at our store, Rinktinės g. 55, 09207 Vilnius - FREE The cost of delivering small items to a parcel terminal is 2.95 EUR including VAT. The price of delivering medium-sized items to a parcel terminal is 5.95 EUR including VAT. Prices for delivery of larger items by courier start from 12.95 EUR including VAT.

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2026 Duotone Foiling & Electric Foil Assist Set D/LAB

S-M / C99:random – Change

FOIL ASSIST · D/LAB

PRONE SURF / DOWNWIND

Duotone FOIL ASSIST SET D/LAB 2026

Item-no. 40260-4003 · Sizes: S-M, L-XXL · Colors: C99 Random

The Foil Assist D/LAB mast is the lightest, stiffest, and lowest-drag mast in the Foil Assist range, delivering the highest level of performance. It’s ideal for prone foiling in small to medium waves and for connecting bumps on downwinders.

The Foil Assist Set D/LAB includes the following items:

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eMast D/LAB Set

Built from lightweight carbon and measuring 84 cm, the eMast D/LAB is the lightest and most advanced model in the Foil Assist lineup. Designed for unparalleled performance and control, the D/LAB emast has a slim, low-drag profile that ensures playful and precise turning, exceptional rigidity, and maximum speeds.

The motor pod is seamlessly molded into the mast profile, positioned 17 cm below the top plate, minimizing drag even during touchdowns. It features a two-blade folding propeller that reduces drag for effortless glide on the wave. Thanks to the integrated gear system, the propeller unfolds instantly, providing a smooth transition as you kick out of the wave and power back out.

The eMast mounts to your board and fuselage just like a conventional foil mast and is compatible with most brands' foilboards.

Tip: For optimal battery performance, pair the eMast with a front wing of at least 900 cm² and a board with a minimum volume of 35 L.

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

eHarness Set

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

eRemote Watch Ring Set

The Foil Assist Remote - a waterproof smartwatch-style controller with a finger ring - keeps your hands free, making it easier to push up on the board, paddle, duck dive, carve or handle a wing. Activate the motor with a double-click on the + button, and control the speed by pressing and holding either the + or - button.

Battery Charger Set

The charger can fully charge both batteries in under one hour and also includes a discharge function that helps maintain long-term battery health.

Airtravel-friendly Battery Set

Depending on your skill level, weight, setup and the conditions, the Foil Assist batteries provide 25 to 40 minutes of runtime per charge.

Note: Find out more details about each product by clicking on the related products below.

Tech Features Sizes Video

Tech Features

Low drag through seamless integration

The fully integrated motor pod, fixed at 17 cm below the top plate, and internally routed cables optimize glide and maneuverability, while allowing for easy assembly.

Extremely low drag

The slim and extremely low drag profile ensures maximum performance for the intended foiling discipline. The super slim base plate design minimizes drag while pumping up on the foil, landing and touching down significantly.

Turning behavior

The riding characteristics of the eMast D/LAB same as the Mast Slim 2.0 D/LAB are extremely playful. The High Modulus Carbon fiber enables precise turning.

Different boost options

Customize your ride with different propellers — plastic or aluminum — to dial in your perfect setup. Choose between powerful assistance that enables you to ride smaller foils and perform sharper turns, or go for a smoother boost for easy takeoffs and foiling.

Modular Design

Every component of the Foil Assist system is cross-compatible with the other eMast options, making it easy to expand your setup. The Foil Assist Mast D/LAB can be mounted to any brand’s foilboard with standard US foil tracks.

Folding propeller for low drag

The two-blade folding propeller reduces drag, allowing for effortless gliding on the wave. Thanks to its integrated gear system, the propeller unfolds instantly, providing a smooth transition as you kick out of the wave and power back out.

Reliable signal transmission

The wireless connection between the remote and the Foil Assist system is very stable, as the receiver is integrated into the lid of the battery box. This design prevents the connection from being interrupted by water.

Sizes & Specs

Lenght (cm)	Chord (mm)	Thickness (Thinnest Point In mm)	Weight (kg / Tolerance: +/- 5% Possible)	Screws 3bs	Rec. Torque	Construction	Disciplines	Conditions	Character	Compatibility Fuselages
84	110	14.5	3	3x M8X50 TX45	15NM M8	HM Prepreg Carbon	Assisted Prone, Downwind, Wake, Wing Foil	Small to big size surf, DW conditions	Strong, easy, maneuverable, direct response	D/LAB Wings + Tail / Aero AL 3BS / Fanatic & Duotone Carbon

Size Chart

Size	Waist
S - M	71 - 89 cm
L - XXL	89 - 114 cm