Flying Words: Is It eFoil, e-foil, or Efoil?

If you’ve just discovered eFoiling, you’ve probably already fallen in love with the feeling of flying above the water. But there’s one small thing that still trips a lot of people up:

How do you actually spell the word?

Is it eFoil, e-foil, or Efoil?

You’ll see all three versions online, in videos, and on social media. The good news: people will understand you no matter which one you use. But if you care about looking a little more “in the know” (especially when you’re posting your session pics or talking to friends), it helps to understand where the term came from and which version most riders and brands use today.

Where “eFoil” Came From

Before anything was electric, there was just the hydrofoil: the underwater wing that lifts boards (and even boats) above the water at speed.

Once brands started adding electric motors to foil boards, they needed a simple way to describe this new toy. The formula was pretty natural:

electric + foil = eFoil

The lowercase “e” followed the same pattern we already knew from everyday life:

• email

• e-bike

• e-scooter

It quietly tells you, “Hey, this thing is electric.”

The capital “F” in Foil makes the word easier to read and keeps the “foil” part recognizable. Instead of “efoil” looking like one long made-up word, eFoil clearly says: “electric foil.”

Over time, that version caught on with early riders, instructors, and brands—and it’s basically become the standard.

Why There Are So Many Spellings

So if eFoil is the main one, why do we still see e-foil, efoil, and E-Foil?

A few reasons:

1. Normal people don’t think like brand style guides

When you’re just discovering the sport, you type what feels obvious: “e-foil lessons,” “efoil board,” etc. You’re not thinking about capitalization rules; you’re just excited to ride.

2. Traditional English likes hyphens

In classic grammar, when you put a prefix like “e-” in front of a word, you often use a hyphen at first: e-mail, e-book, e-commerce. As the term becomes more common, the hyphen usually disappears. The same thing is happening with eFoil.

3. Brands experimented early

Some companies tried E-Foil, Efoil, or other variations when the sport was new. A few still use them, but most marketing and product pages are drifting toward eFoil now.

4. Social media is casual

On Instagram, TikTok, or YouTube, capitalization gets sloppy fast. You’ll see #efoil, #eFoil, #efoilboard, and everything in between—and that’s okay. Hashtags aren’t graded for grammar.

So What’s “Right” for Regular Riders?

If you’re a consumer, not a copywriter, here’s the simple version:

• Most professional and brand usage:
  eFoil

• What your friends might text you:
  efoil, e-foil

• What looks best on your posts, bios, and reviews:
  eFoil

You don’t need to stress about it, but if you want to look like you know the sport, eFoil is the cleanest, most widely accepted choice.

When You Might Care About the Spelling

Most of the time, it truly doesn’t matter. But a few situations make the “nice” version worth using:

1. Posting your session online

Writing:

“First time on an eFoil today. I actually flew!”

looks more polished than:

“First time on an e-foil today.”

Small detail, but it reads smoother and matches what people are used to seeing from brands and instructors.

2. Leaving reviews

If you’re reviewing a lesson, rental, or board online and you say “eFoil,” it helps future riders who are searching for the same thing. It also makes the sport feel a bit more unified instead of scattered across four spellings.

3. Talking to people new to the sport

When you’re telling friends about what you did, calling it an eFoil gives them a clear term they can Google and recognize. They’ll see the same word on websites, videos, and social pages.

A Quick Guide for Everyday Use

If you want a simple rule to follow:

• Use eFoil on:

  • Social media bios

  • Google reviews

  • Emails or texts where you’re explaining the sport

  • Any time you want to sound a bit more dialed-in
    

• Don’t worry about it when:

  • You’re just texting a friend and type “efoil”

  • You see other versions online

  • You’re typing fast and don’t bother with capital letters
    
    

Remember, the spelling doesn’t change the experience. Whether you call it an eFoil, e-foil, or “that flying surfboard thing,” the feeling of rising up and silently gliding above the water is the same.

The Term Is Still Evolving—Just Like the Sport

Language changes as fast as tech does. “Email” used to be “e-mail.” “Ebike” used to always be “e-bike.” As more riders hit the water and more brands standardize their messaging, eFoil is settling in as the modern, official-feeling version.

But the core of it is simple:

• “e” tells you it’s electric.

• “Foil” tells you it’s flying on a hydrofoil.

The rest is just style.

Final Takeaway

If you’re riding, sharing, or shopping, you really only need to remember one thing:

eFoil is the clean, modern, widely accepted spelling—and the one that will make you look most in tune with the sport.

After that, the only thing that really matters is this: are you out there riding?

Because whether you spell it eFoil or e-foil, nothing beats that moment when the board lifts, the drag disappears, and you realize you’re actually flying above the water.