The Duotone eHarness Set 2026 is a battery belt for Foil Assist, available in S-M and L-XXL. It positions two batteries around your waist. This gives you a balanced center of gravity and a more natural glide. Designed specifically for foil assist, this harness 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 gains responsiveness.
- Session Comfort: This technical harness features non-absorbent textile that stays light in the water.
- Safety First: Magnetic detachment allows for a quick cut-off when you need it most.
- Practical Protection: A zipped neoprene bag protects the batteries in case of a fall.
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 your ride feel: your board feels lighter underfoot, and your foil gains responsiveness. You'll experience more direct motor acceleration since no mass weighs down the board, bringing the sensation closer to that of an unassisted foil.
Comfort and Ergonomics
The eHarness combines a technical design with materials engineered for watersports. It features floating and non-absorbent textile, adapted adjustments, and stable buckles. It strikes an ideal balance between support and comfort, even during extended sessions.
Integrated Safety
The magnetic safety system allows for quick detachment in critical situations. This provides true 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 in case of a fall. The batteries are rechargeable and removable for recharging, which simplifies care and range management.
Compatibility
This system is designed exclusively to work with the Duotone Foil Assist. We recommend checking compatibility before purchase to ensure perfect integration with your equipment.
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 quick and stable tightening during your session.
TECHNICAL SPECIFICATIONS
| Specifications | |
|---|---|
| Product | Duotone Electric - DUOTONE eHARNESS SET |
| Use | Foil assist, battery holder for assist motor |
| Construction | This waterproof technical harness features a dedicated battery compartment and a protective 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 | Floating 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 quick and stable tightening |
| Color | One colorway |
| Year / Season | 2026 |
| Highlights | Optimized center of gravity, session comfort, magnetic safety |
| Year | 2026 |
| Duotone Electric reference | 40260-4700 |
FAQ
Who is the Duotone eHARNESS SET for?
The Duotone eHARNESS SET is for foil assist riders using the Duotone Foil Assist. It's ideal for riders who want to improve foil responsiveness by repositioning the batteries around their waist, all while maintaining 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 cabling system to the mast, a neoprene bag, and magnetic safety. The fabric is floating and non-absorbent, and sizes range from S-M to L-XXL.
What size should you choose for the Duotone eHARNESS SET?
Choose S-M if your waist size is 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 a precise fit.
What are the benefits of the Duotone eHARNESS SET?
Battery placement around the waist optimizes the center of gravity and makes the board feel lighter underfoot, improving foil responsiveness. The harness offers comfort, neoprene protection, and magnetic detachment for safety.
How do you maintain 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 condition of the connections and the neoprene bag to ensure optimal protection.
What should you pair the Duotone eHARNESS SET with?
The eHarness Set is designed exclusively for use with Duotone's Foil Assist. Pair it with a Duotone Foil Assist compatible board and mast to ensure proper integration.
Why buy from GlissEvolution?
Why buy from GlissEvolution? We bring over 20 years of expertise in watersports. Our passionate advisors rigorously test gear on the legendary spots of La Baule and Pornichet. We offer responsive after-sales support right here in France, a 2-year warranty, free shipping on orders over €150, and the convenience of in-store pickup in Pornichet.
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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