Sale on 2026 sails | -15% off masts + booms | Until Sep 01

SEAL 2026

Core Wave Sail
From €409.00 Regular Price €489.00
Incl. VAT, excl. Shipping Cost
In stock

The Wave sail for radical moves and ultimate control

Whether you’re carving down the face of powerful sets or playing with every bump in smaller surf, the GUNSAILS SEAL 2026 gives you the freedom to ride exactly how you feel. As the brand’s Core Wave windsurf sail, it stands for the perfect balance of power, control, and agility. Its compact outline, short boom, and exceptional draft stability deliver light, reactive handling in any condition – from the very first take-off to the final spray.

 

Windsurf Performance Windsurf Performance

 

Key Facts:

  • Compact outline and short boom for agile handling
  • Dacron luff panel for reactive power delivery
  • Wide wind range, easy rigging with FRED downhaul indicator
  • 100% X-Ply materials for maximum durability

 

Read more...

 

Agility meets control
The SEAL reacts instantly to every input. Whether it’s tight turns in the wave, radical jumps, or quick changes of direction, it offers maximum freedom of movement while remaining light and perfectly balanced in your hands. The Dacron luff panel combines crisp acceleration with smooth power delivery – ideal for precise wave riding.

Wave performance in any swell
In softer waves, the SEAL delivers the drive you need to hit the cutback with speed. In powerful sets or gusty strong wind, it remains neutral, composed, and highly controllable. Its wide wind range makes it the go-to wave sail for almost any condition – from side-on to side-off.

Durable. Thought-out. Built to last.
Heavy-duty reinforcements at the luff sleeve, clew, and seams, water-repellent materials, and strategically placed X-Ply panels ensure maximum durability with minimal weight. Two mini-battens in the top section stabilise the leech and eliminate flutter – for a consistently clean profile.

The SEAL turns every move into your personal signature on the water – whether it’s a radical cutback or a playful wave move.

The RE-SEAL version with polyester film made from recycled PET bottles will be available in spring 2026.

KEY FEATURES

Windsurf Sail Features

TECH SPECS

Size
Boom
cm
Luff
cm
Cam Top IMCS Best Mast Mast
cm / Ø
Weight
Kg
3.2 143 345 4 vario 15 Expert/Select 340/370 RDM 2.68
3.5 145 351 4 vario 15 Expert/Select 340/370 RDM 2.76
3.7 147 362 4 vario 15 Expert/Select 340/370 RDM 2.84
4.0 149 369 4 vario 15 Expert/Select 340/370 RDM 2.88
4.2 152 379 4 fix 15-18 Expert/Select 340/370 RDM 2.90
4.5 156 384 4 fix 16-18 Expert/Select 370 RDM 3.01
4.7 161 398 4 vario 16-19 Expert/Select 370/400 RDM 3.23
5.0 166 414 4 fix 18-20 Expert/Select 400 RDM 3.29
5.3 171 421 4 fix 18-20 Expert/Select 400 RDM 3.38
5.7 176 429 4 fix 18-20 Expert/Select 400 RDM 3.39

TECHNOLOGY

Windsurf Sail Technology

To ensure the functionality, easy handling and durability of our products, we have developed various features over the years and established them as our standard. The dedication and precision of our sail designer Renato Morlotti are once again evident in the individual details. An important factor that makes our quality possible and distinguishes us from other sail brands.

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TEST REPORTS

Test report Windsurf Sails

Here you will find a collection of test reports on Gunsails sails from international surf magazines. Tested under extreme conditions and evaluated by professionals, these reports offer valuable insights into the performance and quality of the sails.

Test report Windsurf Wave Sail Seal

WINDNEWS // SEAL 4.7

Let's start by saying that the SEAL 2026 looks much better in real life than in static photos. The colours, which appeared a little muted on paper or on the GUNSAILS website, are actually a vibrant red and bright orange that will satisfy even those who care as much about the look as they do about performance. Have you ever read one of my tests where I talked about the appearance of boards and sails as something important? Probably not. Maybe I'm really getting old. Anyway, enough of that.

I have sailed the SEAL and the previous GUNSAILS core wave models so many times that it is becoming increasingly difficult to find something new to say about this honest wave sail. It adapts remarkably well to a wide range of conditions, from serious wave sailing to freewave sessions.

Compared to last year, the shape of the SEAL remains virtually unchanged. The most noticeable updates are a significant weight reduction and the continued refinement of details already introduced last year. These include reinforced areas around the mast sleeve, clew and seams, the use of water-repellent materials and strategically placed X-Ply panels. The result is a sail that is lighter, highly functional, easy to handle and built to last—qualities that have long been a trademark of the German sailmaker.

The ease of rigging and tuning remains unchanged as well. The SEAL rigs particularly well on a 370 RDM mast, which is the ideal combination, but it also works perfectly with a 400 mast. Everything feels simple, intuitive and straightforward.
As with the 4.2 Manic tested on the previous page, if the wind is only just sufficient, the first impression is that the sail feels slightly smaller than its stated size. This is probably due to the shorter boom length, the profile and the outline of the lower section. Heavier riders are the ones most likely to notice this sensation, which translates into power delivery arriving a little later, while most other sailors will not even be aware of it.

Fortunately, heavier riders can recover some low-end power by slightly reducing both downhaul and outhaul tension. With a softer trim, the SEAL gains a few extra points in lighter winds. And even if it may not be the most powerful wave sail on the market, it more than compensates in every other area.
The sail feels perfectly balanced in the hands, the profile remains stable and pressure on the back hand is barely noticeable, even in very strong winds. On the wave, the SEAL delivers a pleasantly soft feel that improves manoeuvrability. In the often imperfect and gusty conditions we frequently sail in, it remains neutral, precise and highly responsive to rider input, even during the fastest transitions.

On the wave, the SEAL scores even more points. It delivers smooth, controllable power through bottom turns and cutbacks while maintaining excellent agility. The result is a playful wave sail that combines stability and manoeuvrability in just the right balance, while also impressing with its responsiveness and ease of handling.

And if you were hoping all of this would come at a reasonable price? GUNSAILS delivers on that as well.

PROS

  • Excellent value for money
  • High-quality construction
  • Outstanding control and stability
  • Lightweight overall feel
  • Versatile and agile
  • Highly responsive on the wave
  • Soft and comfortable handling characteristics

CONS

  • Slightly less low-end punch for heavier riders
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