Wing Foiling Glossary

Wing foiling borrows words from sailing, kiteboarding, and surfing, then adds a few of its own — which means the first few sessions can feel like learning a new language on top of a new sport. This page collects the terms you'll actually hear at the beach or in a lesson, explained simply. Bookmark it and come back whenever something doesn't click.

Gear Terms

Board Leash — A leash connecting you to your board, usually attached at the ankle, calf, or waist. It keeps the board from getting swept away by wind or current if you come off, which matters a lot with a foil attached underneath.

Canopy — The fabric "sail" body of the wing — the part that catches the wind and generates power. It's built from the same kind of ripstop material used in sailboat spinnakers.

Foil Board — The board you stand on, with a hydrofoil mounted underneath instead of a fin. It's shorter and often more buoyant than a regular surfboard, and it's designed to lift fully out of the water once you're foiling.

Front Wing (Foil) — The main underwater wing of the hydrofoil, mounted at the bottom of the mast. It generates most of the lift that raises the board out of the water.

Fuselage — The horizontal bar connecting the front wing to the stabilizer. A longer fuselage tends to add stability and glide; a shorter one makes the foil more responsive and maneuverable.

Handles — Grips sewn onto the wing's leading edge and struts. You hold these to steer the wing's angle and control how much power it puts out.

Harness — A waist or seat harness that hooks into the wing via a harness line, so the wing's pull loads your hips and core instead of just your arms — a big deal on longer sessions.

Helmet — Protective headgear worn for impact protection. More riders are wearing them as the sport pushes into waves, tighter lineups, and shallower water.

Impact Vest — A low-profile buoyancy and impact-protection vest, similar to what kiteboarders wear, for flotation and cushioning against the foil in higher-energy conditions.

Mast — The vertical post connecting the foil (front wing, fuselage, and stabilizer) to the board. Longer masts fly higher off the water and reward experience; shorter masts stay closer to the surface and are more forgiving to learn on.

Pump — A hand or foot pump used to inflate the wing's leading edge and struts with air before a session, the same idea as pumping up an inflatable stand-up paddleboard.

Stabilizer — The smaller rear wing of the hydrofoil. It balances the lift generated by the front wing and controls pitch, keeping the foil flying level instead of diving or popping up.

Strut / Leading Edge — The inflatable spars that give the wing its rigid airfoil shape. The leading edge is the front tube that meets the wind first; struts are the supporting tubes running back across the canopy.

Tow Point / Inhaul — The attachment point(s) on the wing's leading edge where the harness line clips in, letting you hook in and transfer the wing's pull to your harness instead of your arms alone.

Wing — The inflatable handheld sail a rider holds to generate power. Unlike a kite, it isn't flown on lines; unlike a sailboat's sail, it isn't attached to the board.

Wing Leash — A safety leash connecting the wing to your wrist, harness, or board, so it can't blow away from you if you let go of it.

Wind & Conditions Terms

Apparent Wind — The wind you actually feel while riding: the combination of the true wind and the "wind" created by your own forward motion. It's what's actually powering your wing once you're moving, and it's usually stronger than the true wind alone.

Gradient Wind — Larger-scale wind driven by regional weather systems and pressure differences rather than local heating. It tends to be steadier and less tied to time of day than thermal wind.

Gust — A brief, sudden increase in wind speed above the average. Gusts call for quick adjustments — depowering the wing, weighting the board — so you don't get overpowered.

Lull — A brief drop in wind speed below the average. A lull can stall the foil if you don't compensate with a pump or a change in wing angle.

Offshore Wind — Wind blowing from the shore out toward the water. It's the most dangerous direction to ride in at any experience level, since it carries you away from land with no easy way back in if something goes wrong.

Onshore Wind — Wind blowing from the water toward the shore. It can feel safe because it pushes you toward the beach, but for a beginner who can't yet ride upwind, straight onshore wind can push you through breaking waves and over sandbars into the shorebreak.

Side-Shore Wind (also called Cross-Shore) — Wind blowing roughly parallel to the shoreline, often at a slight angle toward or away from shore. Generally considered the best condition for beginners, since it lets you self-rescue back toward the beach if you get tired or the wind shifts.

Thermal Wind — Local wind generated by daytime heating of the land, which draws cooler air in from the water. It typically builds through the afternoon and fades near sunset.

True Wind — The actual wind blowing over the water, independent of your own movement — what you'd feel standing still on the beach.

Wind Window — The area of sky in front of you where the wing can generate power, roughly a quarter-sphere. The edges (low, off to either side) produce little power; the center, overhead, produces the most.

Technique & Maneuver Terms

Breach — When the foil breaks through the surface of the water — usually a wingtip or the mast — and suddenly loses lift. It can cause an abrupt drop or loss of control, often triggered by leaning too hard on the back foot or hitting chop.

Downwind — Riding in the same direction the wind is blowing. It's fast and easy since the wind pushes you along, but it means you'll eventually have to work your way back upwind to return to your starting point.

Going Upwind — Angling the board and wing so you make progress into the wind instead of just drifting with it. It's an essential early skill — without it, every session ends in a long walk back from downwind.

High-Wind Mode / Low-Wind Mode — How a rider adapts technique and gear to conditions. Low-wind mode means flying the wing higher for extra lift and pumping more to keep power on; high-wind mode means depowering the wing, sizing down gear, and staying compact to stay in control.

Jibe — A downwind turn where you change direction while keeping the wind behind you, switching the wing from one side to the other as you turn. Along with the tack, it's one of the two basic ways to change direction.

Luffing / Depowering the Wing — Angling the wing so its leading edge points more directly into the wind, spilling air out of the canopy to reduce or kill its power — the wing equivalent of easing a sail.

Pumping — Rhythmically pushing down and springing up through the legs (and sometimes the wing) to generate extra lift and keep the foil flying without wind or wing power. Useful for getting going, riding in light wind, or powering through a touch-and-go.

Riding Switch (Switch Stance) — Riding with your feet or wing hand positioned opposite your natural stance. It's a common skill to build, since foiling upwind and downwind both often require switching your stance mid-ride.

Self-Launch — Getting the wing inflated with air and up into a controlled position on your own, without someone else holding or throwing it for you.

Sending It / Going Low — Rider slang for committing fully to a maneuver or burst of speed. "Going low" specifically means crouching down over the board for a more stable, powerful stance at speed.

Tack — An upwind turn where you change direction by turning the nose of the board through the wind, flipping the wing from one side to the other. Along with the jibe, it's one of the two fundamental ways to change direction.

Toeside / Heelside — The two riding stances, named for which edge of the board is doing the work. Heelside means your heels are on the working edge, with weight pressing through your heels; toeside is the opposite, with weight pressing through your toes.

Touch-and-Go — Briefly touching the board back down onto the water's surface — intentionally, usually in light wind or a slow patch — then popping back up onto the foil, typically with a burst of pumping, without ever coming to a full stop.

Waterstart — Starting a ride from in the water, using the wing's pull to lift you and the board up out of the water and into a standing position, as opposed to a prone start.

Learning-Progression Terms

Board Volume — A board's total volume, measured in liters, which determines how much buoyancy it provides. Beginners typically want more volume for stability and easier waterstarts; experienced riders size down for a livelier, more responsive board once they don't need the extra float.

Flying (Foiling) — The moment the board lifts fully out of the water and rides on the foil alone, gliding above the surface with only the mast and wings submerged. It's the sensation that gives the sport its name.

High-Aspect vs. Low-Aspect Foil — A description of a foil's wing shape. High-aspect foils are longer and narrower, like a glider's wings, favoring glide, speed, and efficiency. Low-aspect foils are shorter and wider, favoring stability and easier turns — which is why most beginners learn on one.

Prone Start vs. Water Start — Two ways to get going. A prone start means lying on the board and paddling like a surfer to get the foil moving before standing up; a water start uses the wing's pull to lift you directly from the water onto your feet, no paddling required.

Touching Down — When the board (or foil) makes contact with the water's surface again after flying, whether on purpose — as in a touch-and-go — or as the result of losing balance or speed.