Get electric assistance without adding weight to your board. The Duotone eHARNESS SET positions two batteries around your waist for a balanced center of gravity and a more natural glide. Designed for Foil Assist, it combines comfort, magnetic safety, and neoprene protection for smoother assisted sessions.
KEY INFORMATION
DUOTONE eHARNESS SET, Battery Harness for Foil Assist
What we like
- Optimized Center of Gravity: With the batteries around your waist, your board feels lighter and your foil is more responsive.
- Session Comfort: The technical, non-absorbent fabric stays light in the water.
- Safety First: The magnetic release provides a quick power cut-off when needed.
- Practical Protection: A zipped neoprene bag protects the batteries from impacts.
Available sizes
Use
Recommended level
Included / Not included
- ✅ Included: eHarness
- ✅ Included: 2 integrated 1 kg batteries
- ✅ Included: Wiring system with mast connection
- ✅ Included: Neoprene protective bag
- ✅ Included: Integrated magnetic safety system
- ❌ Not included: N/A.
DETAILED DESCRIPTION
Positioning and Ride Feel
Placing the two 1 kg batteries around your waist completely transforms the ride feel: your board feels lighter underfoot, and your foil becomes more responsive. You'll experience more direct motor acceleration since there's no extra weight on the board, making the ride feel much closer to a standard, non-assisted foil.
Comfort and Ergonomics
The eHarness combines a technical design with materials engineered for watersports, featuring buoyant, non-absorbent fabric, a fully adjustable fit, and sturdy buckles. It offers a great balance between support and comfort, even during extended sessions.
Integrated Safety
The magnetic safety system allows for a quick release in critical situations, giving you real peace of mind. The discreet cabling connects to the mast via a short leash, limiting the risk of snagging.
Protection and Care
The zipped neoprene bag effectively protects the battery compartment from impacts. The batteries are rechargeable and removable for charging, which simplifies maintenance and managing your battery life.
Compatibility
This system is designed exclusively to work with the Duotone Foil Assist. We recommend checking compatibility before purchase to ensure it works perfectly with your existing gear.
Size Adjustment
Two size ranges allow the harness to adapt to most body types: S-M (71-89 cm) and L-XXL (89-114 cm). The adjustment buckle ensures a quick, secure fit that stays put while you ride.
TECHNICAL SPECIFICATIONS
| Specifications | |
|---|---|
| Product | Duotone Electric - DUOTONE eHARNESS SET |
| Use | Foil assist, battery holder for the assist motor |
| Construction | Waterproof technical harness with a battery compartment and neoprene bag. |
| Available sizes | S-M (71-89 cm) • L-XXL (89-114 cm) |
| Battery Positioning | Two 1 kg batteries positioned around the waist |
| Textile | Buoyant and non-absorbent |
| Safety | Magnetic quick-release system |
| Compatibility | Exclusively compatible with Duotone Foil Assist |
| Battery | 2 integrated, removable, and rechargeable 1 kg batteries |
| Wiring | Wiring system with mast connection, discreet cable, and short leash |
| Protection | Zipped neoprene bag for battery compartment |
| Adjustment | Adjustment buckle for a quick, secure fit |
| Color | One colorway |
| Year / Season | 2026 |
| Highlights | Optimized center of gravity, session comfort, magnetic safety |
| Year | 2026 |
| Product Code | 40260-4700 |
FAQ
Who is the Duotone eHARNESS SET for?
The Duotone eHARNESS SET is for riders using the Duotone Foil Assist system. It allows you to improve your foil's responsiveness by moving the batteries to your waist, ensuring a secure and comfortable setup.
What are the features of the Duotone eHARNESS SET?
The eHarness Set includes a waterproof technical harness, two integrated and removable 1 kg batteries, a wiring system that runs to the mast, a neoprene cover, and a magnetic safety release. The fabric is buoyant and non-absorbent, and sizes range from S-M to L-XXL.
What size should I choose for the Duotone eHARNESS SET?
Choose S-M if your waist measures between 71 and 89 cm, and L-XXL if you are between 89 and 114 cm. We recommend measuring your waist where the harness will sit for the most accurate fit.
What are the advantages of the Duotone eHARNESS SET?
Wearing the batteries around your waist optimizes your center of gravity and makes the board feel lighter underfoot, improving the foil's responsiveness. The harness provides comfort, neoprene protection, and a magnetic safety release.
How to care for your Duotone eHARNESS SET?
Rinse the harness with fresh water after each session, let it dry in the shade, and recharge the batteries according to the manufacturer's recommendations. Regularly check the connections and the neoprene cover to ensure everything stays protected.
What to pair the Duotone eHARNESS SET with?
The eHarness Set is designed exclusively for use with the Duotone Foil Assist. Pair it with a Duotone Foil Assist-compatible board and mast to ensure it integrates perfectly.
Why buy from GlissEvolution?
GlissEvolution brings over 20 years of expertise in watersports. Our team of passionate advisors tests all the gear on our local spots in La Baule and Pornichet. We offer responsive, France-based after-sales support, a 2-year warranty, free shipping on qualifying orders over €150, and the option to pick up your order in our Pornichet shop.
Kevin
Kevin is our after-sales support and technical expert. A certified repairer, he knows the anatomy of every product. His care advice and field feedback are invaluable for making your gear last.
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