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sailing harnesses and tethers comparison, in stock
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How to choose a harness for sailing
A person overboard at night in bad weather, from a boat that keeps moving, has very little chance of being recovered. The principle is simple: stay on the boat, and that takes a complete system.
The three parts of the system
- Harness or life jacket with built-in harness: the part you wear. It must spread the load across chest and back.
- Tether: connects the harness to the boat. This is the link that takes the most strain.
- Jackline: a fixed webbing strap along the deck where you clip the tether, so you can move without unclipping.
Separate harness or built into the life jacket
| Option | Pros | Cons |
|---|---|---|
| Inflatable life jacket with built-in harness | One garment: buoyancy and clip point. Comfortable and always worn | Needs the same care as an automatic life jacket: yearly cylinder check |
| Separate harness over a life jacket | Useful if you already have a foam vest or want to change vests without changing harnesses | More straps, extra bulk and more adjustment points |
Look for ISO 12401, which covers deck safety harnesses and safety lines for small craft, and for CE marking where it applies. A climbing or work-at-height harness is not a substitute: it is not designed for the water or for the way people fall on a boat.
The tether: length and hooks
| Tether type | Use |
|---|---|
| Single hook, about 3 ft (1 m) | Working at a fixed spot, such as the base of the mast |
| Y-shaped, two hooks, about 6 ft (2 m) | The most common: lets you move without ever being unclipped |
| Y-shaped with three hooks | Combines a short and a long leg for mast and deck work |
| Elastic | Retracts by itself and stays out of the way; stretches to the length stated by the maker |
- Self-locking hooks big enough to clip onto the jackline webbing.
- Shorter is better: the tether should keep you from reaching the water, or limit the fall as much as possible.
- Check that stitching and webbing come from a reputable maker and are in good condition.
Warning: never clip a tether to stanchions, lifelines or any fitting not designed to carry your weight. Use only deck padeyes or the jackline.
Jacklines on deck
- Use flat webbing, not round rope: it does not roll underfoot and holds a hook better.
- Run it bow to stern along the middle of the boat, on both sides if possible, so you stay inboard and cannot go over the rail.
- Attach it to strong deck points. It should be taut, with no slack.
- Rig it before you leave, not once the weather has turned.
- Avoid routing the webbing around sharp edges or through tight fairleads, where it can chafe and wear.
One point deserves attention: if you stay clipped on while the boat is moving fast, you can be dragged through the water, and breathing gets difficult. That is why a short tether and a central jackline matter more than any accessory, and why many sailors keep a sailor's knife within reach to free themselves if needed.
When to clip on
- At night, no exceptions, and any time you are alone on deck.
- In heavy seas, strong wind or when reefing.
- When leaving the cockpit for the foredeck or mast.
- When single-handing or on passage.
- Before any maneuver with a risk of falling.
Tip: clip on before you leave the cockpit, not once you are already out. And agree with the crew where each station's clip point is.
Care and inspection
- Rinse with fresh water and dry in the shade after sailing; salt and UV degrade webbing.
- Check stitching, buckles, hooks and webbing before each season and replace anything worn, cut or corroded.
- Replace the tether and harness after a hard fall or severe shock load, even when you cannot see damage.
- Store dry, away from oil, solvents and direct sunlight.
To round out personal protection, think about a personal AIS-MOB beacon, which alerts the crew or nearby vessels if someone falls in, and a life ring ready at the stern. Within safety gear, the harness is what keeps you from needing them. Offshore racing rules, such as World Sailing's Offshore Special Regulations, set their own requirements for harnesses and tethers, so check the rules for your event.
Frequently asked questions
When should I wear a harness?
At night, in bad weather, when alone on deck or when leaving the cockpit for the bow. Clip on before you step out, not once you are already outside, and stay clipped until you are somewhere safe again.
How long should a tether be?
As short as practical. A Y-shaped tether of around 6 ft (2 m) is the most common, and a 3 ft (1 m) single-leg tether suits work at a fixed spot. For the mast, a tether with a short leg is useful.
Where do I clip my tether?
To a jackline or a deck padeye rated for loads. Never to stanchions or lifelines, which are not designed to take a jerk.
How often should I replace a harness?
Inspect it before every season and replace it if it shows cuts, wear or corrosion. Replace the tether and harness after a severe fall, and always follow the maker's service life.
