SEAL 2023

From €427.50 Regular Price €475.00
Incl. 19% VAT, excl. Shipping Cost
In stock


Fancy radical wave maneuvers or extreme strong wind conditions? Thanks to the large wind range, the 4-batten Core Wave sail can offer both and convinces with its playful handling with just the right mix of drive and neutrality: The SEAL pulls through the turns with momentum and switches to neutral in a flash when riding the wave.


> The lightest GUNSAILS wave sail
> 100% X-Ply / Square-Ply and Kevlar Warp Laminates for the most extreme demands
> Also available as RE-SEAL with up to 75% polyester film made from recycled PET bottles
> Two-piece mast foot protector offers more protection for mast and board
> Optimal mix of drive, control and neutrality
> RDM compatible only

The 2023 SEAL retains its uncompromising wave character. It takes off dynamically at launch and then balances itself in the wind as if on autopilot. Its precise ON/OFF behavior when riding waves, the agile handling even when powered up and the active twist recommend it for every type of waverider. A revised profile on the lower battens with an update of the mast sleeve now provide an even lighter feel, more elasticity in maneuvers and more control. The slightly longer mast curve and short boom give the SEAL its stretched outline, keeping it harmonious and controllable in all wind strengths and guaranteeing excellent overall handling. The generous use of 3 mil square-ply gives the Core Wave sail its reputation as the lightest wave sail in our range. Its features are of the highest level and at the same time guarantee durability. According to the windsurfing press, the SEAL is one of the absolute best all-rounders, so we guarantee the perfect fit for you!


Within the last season we introduced the world's first windsurf sail made of recycled material, the RE-SEAL. Our journey to sustainability goes on and we continue to RE-THINK. To further reduce the carbon footprint of our sail collection we have added the RE-TORRO and the RE-ZOOM as recycled models to our range.
The RE-SEAL is made of up to 75% polyester film from recycled PET bottles, depending on the size. By switching to recycled material, each square meter contains about 10 recycled PET bottles, saving an additional 400 g of CO2 per m² in material production. In terms of design, features and performance the RE-SEAL is identic with the SEAL and does also live up to the well known Gunsails quality promise.

RE-THINK – our journey to sustainability



Battens Top IMCS Best Mast Mast
cm / Ø
3.2 143 345 4 vario 15-17 Cross/Expert/Select 340/370 RDM 475,-
3.5 145 351 4 vario 15-17 Cross/Expert/Select 340/370 RDM 495,-
3.7 147 360 4 vario 15-17 Cross/Expert/Select 340/370 RDM 529,-
4.0 150 367 4 vario 15-17 Cross/Expert/Select 340/370 RDM 539,-
4.2 153 378 4 fix 15-17 Cross/Expert/Select 370/340 RDM 549,-
4.5 159 384 4 fix 16-18 Cross/Expert/Select 370 RDM 559,-
4.7 165 397 4 vario 16-19 Cross/Expert/Select 370/400 RDM 569,-
5.0 170 411 4 fix 18-20 Cross/Expert/Select 400 RDM 579,-
5.3 176 418 4 fix 18-20 Cross/Expert/Select 400 RDM 589,-
5.7 180 428 4 fix 18-20 Cross/Expert/Select 400 RDM 599,-


A GUNSAILS windsurf sail is a combination of selected and high-quality materials, combined with years of experience and construction knowhow. Sail designer Renato Morlotti is responsible for the performance and quality of the sails. In his working environment he has optimised everything down to the smallest detail. Every piece of material in the sail is continuously improved in terms of durability and weight savings. Only a closer look reveals the quality, good manufacturing and durability of a GUNSAILS sail.


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.


Testbericht Windsurf Segel Surf Magazin Test Wave Seal

SURF MAGAZIN JAN-FEB 2022 // SEAL 4.5 2022

Everyone who still thinks Gunsail's sails are a bit heavier should be convinced of the opposite by now. Despite the well known features, the sail also beats the 3 kilo mark, and the price advantage is indisputable anyway. The trim point in the top helps to find the right luff tension, moderate tension at the boom is enough to cover a wide wind range. The Seal is one of the absolute best all-rounders in the group: it immediately develops a full power in the start-up phase and finds the right angle to the wind almost by itself, while at the same time being very light in the hand. Even when powered up, it retains this agile feeling, remains controllable for a long time even in gusts and doesn't require much adjustment of the trim as conditions change. In gybes, duck jibes and other maneuvers, the battens rotate smoothly and the Seal doesn't show any weaknesses when riding waves: It moves through the turn with a nice drive and always provides a slight pull on the sail hand - this helps to get up to the lip of the wave with power even in onshore wind.

surf conclusion: Whether in the Ijsselmeer Chop, during a jump session on the Baltic Sea or in thick ocean waves - the Seal is ready for all outrages and recommends itself with power, easy handling and large wind range for a maximum target group.

+ Wind range, handling, control
o nothing
- nothing

Testbericht Windsurf Segel Surf Magazin Test Wave Seal


DESIGN: The Seal makes great use of Square-Ply, a lightweight mesh film, with a mix of different mesh film variations. The Dacron portion along the mast has been extended and the mast pocket adapted. The Seal needs little tension, unfolding its shape and profile when inflated by the wind.

ON THE WATER: The Seal is easy to adjust, with little tension at the mast foot and moderate pull on the boom. The sail shows a tight leech with hardly any loose, which is due to the exact in-house trim specifications. More than ever, Gunsails can keep up with other brands when it comes to weight: only 3 kg for this 4.5! What is true on the scales is confirmed on the water with a sail top that is free of any stress. The Gunsails offers a quickly noticeable pull, which has the advantage of offering a dashing start, mobility on the water and, above all, a good grip in the hand. The pull is well distributed in front of you and you feel a pleasant smoothness. The power is controllable by opening the sail, with the back hand you dose the charging of the power or its neutralisation. So you can lighten the edge of your board while surfing to turn tight or, on the contrary, maintain propulsion and support to lengthen the radius. The Seal is not an on/off sail, but an all-round sail that approaches it. As usual, the Seal has a good hold in strong winds, where even with its 4 battens it loses none of its stability.

VERDICT: The Gunsails is an all-rounder with a preference for wave riding due to its light weight and a plus in manoeuvrability that comes from its OFF capabilities. As with the weight, the Seal's agility means it stands up to comparison with the market leaders. The Gunsails focuses on smooth responses and neutrality to feel comfortable in a wide range of conditions and practices.

+ Propulsion, manoeuvrability, wind range, price
Simple mast sleeve and features

Testbericht Windsurf Segel Surf Magazin Test Wave Seal



Lighter since last year, this sail is made entirely of X-Ply except for the Dacron mast panel and is one of the lighter sails on the market at 2.9 kg. The loose leech is above average, with a good trim mark.

ON THE WATER: The Seal is a lightweight sail with a pronounced profile in the forward area, which subsequently becomes flatter, with good propulsion and momentum in acceleration. One appreciates the power varying for a 4.5, which is snappy and softer to ride with good pull when you give little tension, and finer, more direct when you increase the tension on the boom. On the wave it brings the forward drive to accelerate on the wave slope, and then neutralizes pretty well, light on the back hand with great maneuverability in turn combinations: It's much better than the Horizon without being as responsive as the best of the bunch. Other strengths include high profile stability and good cruising speed to get out of foam and current. All in all, the Seal offers a good compromise between flexibility, neutrality and stability to cover a wide range of conditions, from side off to on shore, whether you're light or heavy. It's not the softest or smoothest of the bunch when landing jumps, chop or accelerating at the top of the wave, but that's what gives it the momentum it needs in soft waves and on shore. Add to that the ability to self-stabilize in the wind and control itself for quite a long time.

CONCLUSION: With its power/neutrality dosage, this Seal belongs to the safe representatives with a nice range of use. You sail above average and keep control when the wind picks up. It is complete, efficient and suitable for everyday use, light and, given the construction, also very well positioned in terms of price.

+ Range of use, stability/maneuverability ratio, power, speed, light weight, versatility in the wave, price.
Not as playful as the best, not the softest sail.

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