Earplugs for kitesurf and surf: why and how to choose
You ride in Belgium. The water sits at 7°C six months a year, the wind blows at 25 knots minimum, and you spend two hours in the sea every session. Your ears? They take all of that straight to the face — and they won’t forgive you for it.
The topic of earplugs is a bit like sunscreen twenty years ago: nobody wore it, everyone regrets it today. Except here, we’re not talking about a sunburn. We’re talking about bone growing inside your ear canal until it blocks it completely. Welcome to the world of “surfer’s ear”.
This guide explains what happens in your ears when you ride in cold water, why Belgium is a textbook worst-case scenario, and how to choose earplugs that actually work without cutting you off from the world.
What exactly is “surfer’s ear”?
The scientific name is external auditory canal exostosis. In plain English: the bone surrounding your ear canal starts forming growths, like little bony buds, that progressively narrow the passage.
The mechanism is simple. When cold water (below 19°C) or cold wind repeatedly enters your ear, the body reacts as if facing a chronic aggression. It produces new bone tissue to “protect” the inner ear. Except this protection ends up becoming the problem: the canal gets blocked, water and earwax stay trapped inside, and infections follow one after another.
This isn’t a disease reserved for surfers. All cold-water sports are affected:
- Kitesurfing
- Surfing
- Wakeboarding
- Stand-up paddle in cool conditions
- Windsurfing
- Kayaking
- Cold-water diving
In the scientific community, exostosis is so strongly associated with watersports that it’s simply called “surfer’s ear”.
The numbers that make you think
Studies on the prevalence of surfer’s ear are pretty clear — and not reassuring for those who ride without protection.
| Exposure | Risk of developing exostosis |
|---|---|
| Cold-water surfers vs warm-water | 6 times more risk |
| Less than 10 years of practice | 6% of severe cases |
| More than 20 years of practice | 16% of severe cases |
| Each year of practice | +12% cumulative risk |
In other words: the longer you ride in cold water without protection, the more your ear canal closes up. And it’s not reversible — once the bone has grown, the only solution is surgery.
Why it’s worse in Belgium
The North Sea is the perfect lab for developing surfer’s ear. Three factors stack up:
1. The water is cold year-round. In Ostend or Knokke, temperatures swing between 4°C in winter and 22°C at the peak of summer. The annual average sits around 12°C. The critical threshold for exostosis onset is 19°C — so we’re in the red zone for 9 to 10 months a year.
2. The wind blows strong and constant. Belgium is one of the best kite destinations in Europe precisely because there’s always wind. Except that same fresh breeze pushing you along also dries the inside of your ears after every immersion, amplifying the chronic irritation.
3. Sessions are long. You don’t go to the North Sea for thirty minutes. You hype yourself up, make the drive, and stay in the water for two to three hours. Every extra hour means more exposure.
For a Belgian kitesurfer riding twice a week for ten years without protection, the odds of developing significant exostosis are very high. It’s not paranoia, it’s statistics.
Symptoms to watch for
Exostosis is a silent condition for years. You don’t feel a thing, you don’t suspect anything, and one day you find yourself at the ENT with a canal blocked at 70%. Here are the signals that should alert you:
- Feeling of a blocked ear that keeps coming back, especially after a session
- Repeated infections (external otitis, “swimmer’s ear”)
- Water staying trapped in the ear longer than before
- Gradual hearing loss, even mild
- Tinnitus (whistling, ringing)
- Dull pain when you expose the ear to cold wind
If you tick two boxes or more, book an appointment with an ENT. They’ll look into your canal with an otoscope and can diagnose it in thirty seconds. A visit every two or three years is a solid habit for any regular Belgian rider.
The 3 types of earplugs
Not all earplugs are equal. For watersports, there are three main families, and the choice depends on how you use them.
1. Solid earplugs
These are the classic pool or sleep earplugs. Silicone, foam, wax. They block everything, period.
Pros: cheap, available everywhere, maximum seal. Cons: you can’t hear anything (dangerous during a session with other riders), they can create uncomfortable pressure differences, and they tend to pop out when you take a big wipeout.
For who? Pool use, solo training. Avoid in kite or surf sessions with other people.
2. Vented earplugs
They have a small hole or channel that lets air through, but not water (thanks to surface tension). This is the technology behind Doc’s Proplugs notably.
Pros: natural pressure equalization, you hear much better than with solid plugs, they stay in place more easily. Cons: the seal isn’t 100% (water can seep in during a big wipeout or prolonged head-under-water immersion).
For who? Surf and bodyboard where you regularly take water to the head. Kite where you want to hear other people on the spot.
3. Filtered earplugs
The most recent technology. An acoustic filter lets sound through (voices, ambient noise) while blocking water and cold wind. This is the specialty of SurfEars.
Pros: best compromise between protection and communication. You hear almost normally. Cons: more expensive, more fragile, often requires playing with sizes to find the right fit.
For who? Regular riders who want maximum protection without sacrificing communication. It’s the default choice for serious use in Belgium.
Brand comparison
Here are the market references, ranked by budget.
SurfEars 4.0
The premium reference in the sector. Swedish brand (they know cold). The system combines an acoustic filter (you hear very well) and a membrane that blocks water.
- Price: around 40-50€
- Technology: acoustic filtering + water/wind barrier
- Strengths: excellent sound quality, shipped with several tip sizes, leash included
- Weaknesses: price, components a bit fragile (don’t pull on the retention string)
Alpine SurfSafe
Dutch brand known for their concert and motorcycle earplugs. Their watersports range (SurfSafe or SwimSafe depending on the year) is designed for aquatic disciplines.
- Price: around 25-30€
- Technology: sealing with slight air passage
- Strengths: comfort, good retention, hypoallergenic silicone
- Weaknesses: not as good as SurfEars for hearing others clearly
Doc’s Proplugs
A historical classic, invented by Dr Scott Norton (hence “Doc’s”). Minimalist and very robust design.
- Price: around 15-20€
- Technology: vented earplug (vented or non-vented model)
- Strengths: cheap, indestructible, comes in 12 different sizes
- Weaknesses: fairly visible look (sticks out of the outer ear), less premium comfort
Mack’s Aquablock
American mass-market brand, available in pharmacies and big-box stores. Thermoformable silicone earplugs.
- Price: around 5-10€
- Technology: solid silicone earplugs
- Strengths: available everywhere, very cheap
- Weaknesses: maximum seal but you can’t hear anything, not suitable for a real session with other riders
Custom-molded earplugs
Top of the range. An audiologist takes an impression of your canals, then makes earplugs that match your anatomy exactly. Reference brands: ACS Custom, ProGuard, Pro-Aquaz.
- Price: around 120-180€
- Technology: molded medical silicone + acoustic filter
- Strengths: unbeatable comfort, 3-5 year lifespan, perfect seal
- Weaknesses: price, requires an appointment with an audiologist, can’t be shared
If you ride year-round and plan to keep riding for another ten years, they pay for themselves.
Recap table
| Brand | Price | Hear well? | Seal | For who |
|---|---|---|---|---|
| SurfEars 4.0 | 40-50€ | Excellent | Very good | Regular rider, wants the best |
| Alpine SurfSafe | 25-30€ | Good | Good | Regular rider, moderate budget |
| Doc’s Proplugs | 15-20€ | Average | Average | Starting out, testing the waters |
| Mack’s Aquablock | 5-10€ | Bad | Excellent | Pool, emergency fix |
| Custom-molded | 120-180€ | Excellent | Perfect | Rider for life, ultimate comfort |
How to choose the right size
This is THE point nobody tells you about, and it accounts for 80% of the final comfort: your two ears aren’t the same size. It’s normal, it’s anatomy, and that’s exactly why serious earplugs are shipped with multiple tip sizes.
The 3 rules:
- Try all the sizes provided, one after another, for at least a minute each.
- Do a home test before the session: shower with your head under the water, check that no drop gets through.
- The ideal size doesn’t hurt after 30 minutes. If it pulls or itches, it’s too big.
It’s common to have size M on the right and size L on the left (or the other way around). No problem — you mix and match.
Tip: to insert them, pull your outer ear (the top of the ear) up and back with your opposite hand. It straightens the canal and the plug slides in without forcing.
Useful accessories
The leash
It’s a small cord that connects your two earplugs and goes behind your neck. Essential. A lost earplug during a session means:
- 20-50€ budget to replace
- A whole session without protection
- Marine pollution
All serious models (SurfEars, Alpine, Doc’s) ship with a leash. Never ride without.
The case
A small waterproof box to store your earplugs in your beach bag. Stops sand from getting into the filters (it happens faster than you think).
Cleaning product
Optional but useful: a small gentle antibacterial solution to disinfect your earplugs once a week. You can also use classic neutral soap.
Maintenance
Golden rule: rinse with fresh water after every session. Like your wetsuit, like your kite, like your board.
Salt attacks filters and silicone. Sand blocks the vent channels. If you rinse for 10 seconds after each session, your earplugs last 2-3 years. If you throw them in your bag soaked in salt, they last 6 months.
Post-session routine:
- Rinse with fresh water (not hot)
- Shake to clear water from the filters
- Air-dry (not in direct sunlight)
- Store in the case once dry
Once a month, you can let them soak 5 minutes in warm soapy water, then rinse.
What about kids?
Kids and teens starting kite, surf, or SUP through a school are even more vulnerable: their canals are narrower, and they’ll accumulate decades of exposure if they keep at it.
Most brands make kid-size versions. Doc’s Proplugs goes down to XXS, SurfEars offers extra-small tips. At 15€ a pair, there’s no reason not to equip juniors from their very first course.
My take
If you ride in Belgium more than 20 times a year, earplugs aren’t an optional accessory. They’re as important as your winter wetsuit, your neoprene booties, or your hood.
The best value-for-money pick for a Belgian rider is the SurfEars 4.0 at 45€. You hear your mates well on the spot, you block water and cold wind, and the pair lasts 2-3 seasons with proper maintenance.
If your budget is tight, start with Doc’s Proplugs at 15€ — it’s infinitely better than nothing, and you can upgrade later.
If you ride year-round, have been riding for several years, and see yourself keeping at it for a long time, book an appointment with an audiologist for custom-molded plugs. The 150€ investment pays off in two years and the comfort is in a different league from off-the-shelf.
Whatever you choose: wear them every single time. Not “when I think about it”, not “when it’s really cold”. Every session. It’s like a seatbelt — all or nothing.
FAQ
Can I hear with earplugs?
Yes, with filtered models like SurfEars or vented ones like Doc’s. You lose some volume but you understand voices and shouts on the spot. With solid earplugs (Mack’s, foam), you’re cut off from the world — avoid in shared sessions.
From what water temperature should I wear them?
The scientific threshold is 19°C. In practice, in Belgium, you should wear them year-round. Even in August when the water hits 20°C, the wind stays cool and sessions are long: better to make it a systematic habit.
Do they really stay in place during a wipeout?
Models with leashes, yes, 99% of the time. Quality earplugs (SurfEars, Alpine, Doc’s) are designed to handle the pressure of a kite crash or wave impact. If an earplug keeps popping out, it’s the wrong size — try one size up or down.
How do you cure surfer’s ear?
There’s no medical or drug-based treatment. The only solution once exostosis has developed is surgery (drilling or osteotomy under general anaesthesia). It’s effective but invasive, with several weeks of recovery and no watersports. Hence the critical value of prevention.
Can I use sleep earplugs instead?
For the pool at a pinch, but not for the sea. Sleep earplugs (foam, wax) absorb water, lose their effectiveness as soon as you immerse them, and can’t handle wipeouts. You’ll lose them or find them soaked after 20 minutes.
Do I have to wear them in both ears?
Yes, systematically. Exostosis affects both sides, and the unprotected ear will develop the problem on its own. No reason to sacrifice one ear “to hear better” — filtered models let you hear with both plugs in.
Going further
- The complete wetsuit guide — the other essential health investment in Belgium
- The best smartwatches for kitesurf, surf and SUP — to track your sessions
- Kitesurf spots in Belgium — where to ride on the Belgian coast
- Surf spots in Belgium — the North Sea can be tamed
- All our articles and guides — to keep gearing up smartly
- Join the BINDY community — to share your feedback and tips
Your ears won’t grow back. Next time you head out for a session, think of them before putting on your wetsuit — the 30 seconds it takes to insert them is literally the best return on investment in your whole kit.
