The lightest fabric is not necessarily the best choice for a Parawing. A very thin canvas flies better when the wing is new, especially in light wind. But it has less material to lose: as it ages, its coating wears out, the fabric stretches in the bias and the profile deforms. The wing then requires more wind to take off. A 30 g/m² canvas ages more slowly and maintains its lower wind range longer.
For the past two seasons, the Parawing market has been chasing the gram. Fabrics are becoming thinner, "ultralight" materials from paragliding are arriving on wings, and the total weight of the wing has become the number one sales argument. It's understandable: a light Parawing flies early, folds small and stays in the air when the wind drops.
But one question remains absent from the debate. What is this wing worth after one season? After two seasons? After a hundred sessions?
At SROKA, we made the choice not to go below 30 g/m² on the FYNIX. It's not a default choice, nor a technological lag. It's a deliberate trade-off, based on what we've seen in Kitesurfing and Wing foil, and on what the paragliding world has been measuring for years with rigorous protocols that water sports have still not adopted.
Here's why.
What does fabric weight really change in flight?
Let's be honest first: light fabric has real advantages, and denying them would make no sense.
Unlike an inflatable wing, which holds its shape thanks to its inflated leading edge and central tube, a Parawing relies entirely on apparent wind to maintain its shape. There's no tube, no batten, no frame. The shape of the wing is the fabric, the bridle and wind pressure.
In this logic, lighter fabric provides:
- better hold in the air when the wind drops;
- easier takeoff after a fall;
- better responsiveness to controls;
- less inertia in maneuvers.
The benefit becomes particularly visible in light wind, where a heavy wing tends to close or lose its shape. To understand how fabric, bridle and wind create the profile, read how a Parawing flies.
In other words: on a new wing, statically, in a day-long comparison, the finest fabric almost always wins.
The problem is that no one tests wings at the hundredth session. And that's precisely where everything is decided.
How does paragliding measure fabric wear?
Paragliding has a considerable head start on us. Because pilot safety depends directly on it, the industry established long ago measurement protocols for fabric condition, with inspection workshops and numerical criteria.
The reference instrument is called a porometer. The principle is simple: you pass a defined volume of air through the fabric and time it. Concretely, you measure the time needed for 0.25 liters of air to pass through 38.5 cm² of fabric under a pressure of 10 millibars. The result is expressed in seconds, and can be converted to liters per square meter per minute.
The thresholds used by inspection workshops are telling. A new fabric takes several minutes. Below 30 seconds, the sail is subject to a recommendation for caution about its flight behavior. Around 10 seconds, depending on the workshop, it is considered unusable: it is no longer fit to fly.
These measurements are taken at several locations, typically five, distributed from center to edges, on the upper surface, approximately 20 to 30% of the chord from the leading edge. This is where the fabric works the most.
But the most important point for us is not the number. It's the mechanism.
Weave and coating: what really wears out
A sail fabric is not just a weave. It's a weave plus a coating. And this coating degrades in two ways: mechanically, through repeated folding, friction, sand and tensions experienced in flight; chemically, mainly through UV and humidity effects.
Now, and this is the heart of the matter, the coating serves not only to make the fabric airtight. It also serves to stiffen it, particularly in the bias, that is diagonally relative to the warp and weft threads. This is exactly the direction in which a soft wing works.
The consequence is direct and documented: a porous sail deforms. It becomes slower, its stall approaches, and in extreme cases it can adopt degraded aerodynamic behaviors.
It's not the fabric that breaks, it's the fabric that loses its stiffness. And when it loses its stiffness, it's the shape of the wing that moves, with direct consequences for navigation.
Why does a kite or wing eventually get tired?
Water sports don't have a porometer, but they have something else: twenty years of field experience.
In Kitesurfing, the race for ultra-thin fabric already happened. The finding from riders and workshops was the same everywhere: fabrics that are too thin stretch quickly. The fabric stretches in the bias, the profile deepens, and the wing no longer behaves as it did on day one. Not because it's torn, but because it has moved.
In Wing foil, the phenomenon is even more striking, because everyone has experienced it. After one or two seasons of sustained use, a wing becomes soft. The trailing edge starts to flutter. The wing doesn't climb as well upwind, or its ability to go in light wind is impaired. The rider has the feeling that the wing is tired, without being able to put a technical term to it. And when he unfolds it on the beach, the fabric looks intact. No tear, no hole, nothing visible.
It's the same mechanism as the one measured in paragliding, simply without an instrument to quantify it. The sign to watch for is the trailing edge: if it's slack and starts to flutter, the fabric has started to work and the wing to deform.
The Parawing is exposed to the same phenomenon, worse. Because it has no inflated structure, absolutely everything depends on fabric integrity. And because its environment is more aggressive than that of paragliding: salt, sand, immersion, wet folding in a bag, random drying.
What happens when a Parawing's fabric stretches?
A wing doesn't die when it tears, it dies when it deforms. We need to be precise about what this deformation produces, because it's often misunderstood.
When the fabric stretches and the profile deepens, the wing doesn't become more powerful. It's the opposite. The profile no longer holds correctly, the wing no longer pressurizes as it should, and it generates less power than originally. It also responds less to bar movements.
The practical consequence is very concrete: you now need more wind to take off. It's the lower wind range that recedes. Let's take an example, with identical setup: the wing that made you take off in 12 knots now requires 14 or 15. You still have the same wing in your bag, the same advertised surface, but you've lost the most precious sessions: those in light wind. Your takeoff threshold depends on your entire system (wing, foil, board, level), as we explain in our article on minimum wind in Parawing.
This is exactly what riders describe when they say their wing is tired.
And that's where the real market problem lies. At the time of purchase, you have no way to measure this. No porometer, no history, no protocol. You have only one comparable data point from one brand to another, when it's displayed: the fabric weight and the wing weight.
Result: the entire market is pushed toward ultra-thin by a criterion that only measures the first day of use.
15, 20 or 30 g/m²: which fabric for which use?
Weight is neither good nor bad in itself. It shifts the trade-off between first-day performance and long-term durability. This table summarizes this trade-off.
| Criterion | Very fine fabric (15 to 20 g/m²) | 30 g/m² fabric |
|---|---|---|
| Wing weight | Lighter | Slightly heavier at equal surface |
| Flight in light wind, new wing | Advantage | Slightly behind |
| Margin before coating wear | Low | More material, slower degradation |
| Profile retention over sessions | Stretches faster in the bias | Holds longer |
| Lower wind range over seasons | Recedes faster | Recedes more slowly |
| Sand, salt, repeated folding | More sensitive | More resistant |
| For whom? | Pure Downwind, absolute priority on weight, rider who frequently replaces their wing | Freeride, intensive use, sandy spots, rider who keeps their wing for several seasons |
Weight alone doesn't tell the whole story. At equal weight, thread quality, weave density and coating type make a big difference: a cheap entry-level thick spinnaker, chosen for its price, is nothing like a well-coated 30 g/m² canvas. This is why the coating question is part of the purchase criteria listed below.
Why does the FYNIX use 30 g/m² fabric?
The FYNIX uses a 30 g/m² spinnaker fabric, naturally hydrophobic.
Let's be clear: this choice has a cost. At equal surface, a 30 g/m² fabric weighs more than a 20 or 15 g/m² fabric. On a comparative spec sheet, we won't be the lightest Parawing on the market. We accept this, and we prefer to explain it rather than hide it.
What this choice brings in return:
- More material in the weave and coating before the fabric really starts to work in the bias. Degradation exists, it's inevitable, but it's slower.
- Better profile retention over time, so a wing that retains its ability to pressurize and take off early for longer.
- A lower wind range that recedes more slowly over the seasons. In other words, the wing you use two seasons later still looks like the one you bought.
- Better resistance to marine environment aggression, sand and repeated folding.
At 15 g/m², essentially just thread and a coating veil remain: very little margin before the fabric loses its stiffness. At 30 g/m², there's material.
The FYNIX is still young, and we don't have two seasons of hindsight on this specific model. This choice is based on what we've seen age in Kitesurfing and Wing foil, and on the mechanism measured in paragliding.
It's not automatic superiority, it's a positioning: we optimize performance over the wing's lifespan, not performance on day one.
How to slow down your Parawing's aging?
Regardless of weight, lifespan depends heavily on use and storage. A wing stored wet or left in the sun will degrade faster than a wing used often but properly dried and stored. UV and residual humidity are the main enemies of coating.
- Don't rub your wing when it's full of sand: sand acts as an abrasive on the coating.
- If your wing is wet, dry it well before storing it.
- Never fold it the same way, and avoid sharp creases: repeated in the same place, they create lines of weakness in the fabric.
- Don't let it flutter in the wind on the beach: each flutter makes the fabric work for nothing.
- Don't leave it in direct sun: UV weakens the fabric and its coating.
All steps, step by step (drying, folding, storage, checks), are detailed in our guide to maintaining a Parawing.
How to judge a Parawing before buying?
Some useful questions to ask, regardless of which brand you're considering:
- What is the exact weight of the fabric, and what type of coating is used?
- Does the manufacturer have data or field experience on the condition of their wings after one or two seasons of intensive use?
- Is there a repair and inspection service, and what exactly does it check?
- What do riders who have been using the model for more than a year say, not just launch reviews?
And most importantly, keep the right reflex: don't judge a wing on the advertised weight, judge it on what it will be worth at your hundredth session.
Fabric is just one criterion among others: size, foil, board and your program matter just as much. To put it all together, follow our guide to choosing your Parawing, or compare market models in the 2026 Parawing comparison.
The FYNIX is the first Parawing with true dynamic Depower-Power thanks to the PushBar System® (registered trademark, patent pending). Discover the SROKA FYNIX Parawing and its 30 g/m² fabric, or browse the entire SROKA Parawing collection.
Frequently asked questions about Parawing fabric
What fabric weight should I choose for a Parawing?
There's no good weight in absolute terms. A very fine fabric, 15 to 20 g/m², flies better when the wing is new, especially in light wind, and folds smaller. A 30 g/m² fabric weighs a bit more but keeps its profile longer. Choose based on your program and how many seasons you plan to keep the wing.
Is a light Parawing more fragile?
Not necessarily to tearing. But a very fine fabric has less margin before its coating wears out. The fabric then stretches faster in the bias, the profile deforms and the wing loses power.
How do I know if my Parawing's fabric is tired?
Look at the trailing edge: if it's slack and starts to flutter, the fabric has started to work. In the water, the wing requires more wind to take off, pressurizes less well, responds less to the bar and relaunches less well after a fall.
Why does a worn wing require more wind?
Because its profile deepens and no longer holds. The wing pressurizes less well and generates less power than originally. The lower wind range recedes, even though the wing's surface hasn't changed.
What is the fabric weight of the FYNIX?
The FYNIX uses a 30 g/m² spinnaker fabric, naturally hydrophobic. SROKA chose this weight to prioritize profile retention over time rather than minimum weight on day one.
How do I extend the lifespan of my Parawing's fabric?
Dry it before storing, avoid leaving it in the sun, don't rub it when it's full of sand, vary where you fold it and don't let it flutter in the wind on the beach.
Bruno Sroka, three-time world champion in Kitesurfing and Kitefoil. Cape Horn crossing (2008), English Channel record (2012), France-Ireland link of 444 km (2013). Former PE teacher, founder of SROKA Company, Breton brand for foil, Wing foil, SUP and Parawing. Designer of the PushBar System®.
