Getting wing size wrong is easier than it looks: go too small and you stand on the board waiting for a gust; go too big and your arms tire out while the wingtips start catching the water. Here's how to land on your size, and how the SlingWing models in our catalog differ.
What size depends on
There are four factors. Weight: the heavier the rider, the more area it takes to get up on the foil. The wind at your spot: not the record day, but what blows most often. Board and foil: a high-volume board and a large front foil wing lift off earlier and let you ride a smaller wing. And skill: an experienced rider knows how to pump the wing and get on foil where a beginner simply won't have enough pull.
A rough guide by weight
For medium wind, roughly 15–20 knots, the main size usually looks like this:
— Up to 65 kg (143 lb): 4–4.5 m².
— 65–85 kg (143–187 lb): 4.5–5.5 m².
— Above 85 kg (187 lb): 5.5–6.5 m².
That's a starting point, not a chart. If your spot is usually lighter, move up a size; if it's reliably windy, move down.
Why "a bit bigger, just in case" doesn't work
With a kite, an extra meter of area is barely noticeable in your hands. With a wing, you notice it right away: you're holding it yourself, and the whole span sits close to the water. A big wing is heavier in the hands, slower to flip in turns, and if you're not tall, its tips touch the water when you start. So a beginner is better off with a size from the middle of their range, not the biggest one.
How to tell the size is wrong for you
The wing is too small if, in the usual wind at your spot, you can't get on foil without a long pumping session, and you drop back onto the water in every lull. The wing is too big if you constantly have to dump power in the gusts by letting go with your back hand, your shoulders are cooked in half an hour, and the wing catches the water in turns. In both cases the fix isn't technique — it's a different size.
One wing or two
Most people ride a single wing for their first season. Then a second one shows up, 1–1.5 m² apart: for example, a 4.5 for strong wind and a 5.5 or 6.5 for light wind. A smaller gap makes no sense — the two sizes would overlap almost completely. A small wing is also lighter and more maneuverable — in strong wind it's simply more fun.
How the SlingWing models differ
The SlingWing V5 is a proven fifth-generation wing. It's easy to handle, and it's a great choice for getting started in wingfoiling. In our catalog: 4.5 m².
The SlingWing V6 is the sixth generation: a lightweight frame, a comfortable handle, and predictable power on any water. It has the fullest size run — 4, 4.5, 5, 5.5, and 6.5 m² — so this is the easiest place to match a size precisely to your weight or to build a two-wing quiver.
The SlingWing NXT is the flagship: top-tier materials and the widest wind range in the lineup. A wide range means one wing works in both light and strong wind, so you change sizes less often. Sizes: 4.5 and 5.5 m².
The short version
— Just starting out: a V5 or V6 in a size from the middle of your range.
— Need an exact size or a pair of wings: V6.
— Want to cover the most wind with a single wing: NXT.
Stuck between two sizes?
Message or call us: tell us your weight, your spot, and what board and foil you have — and we'll tell you which size and which model fit you specifically.