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    Different boats require different solutions. KOONAA is
    tailormade to fit the particular needs of a multihull boat,
    whether being the performance cruiser or the leisure cruiser.
    Go special, go with KOONAA. Stand out! Your boat is your
    signature. Our sail designs are tailored your special needs.

Different layouts

  • X-CUT
  • TRIOPT
  • EPEX
  • X-CUT
    A cross-cut sail (x-cut) consists of a number of horizontal panels parallel to each other and perpendicular to the leech. This is a very cost-effective way of producing a sail, making it affordable and long-lasting. Being the first sail-design on the market, the x-cut sail has a long and proven track-record.
    Cross-cut sails are typically made from a woven polyester cloth with straight fill yarns that are stronger than the warp yarns. The strong fill yarns are aligned with the load bearing direction of the sail resulting in a very durable sail.
  • TRIOPT
    Trioptimal layout is also referred to as radial, since the panels are radial typically oriented towards the corners of the sail resulting in a triangular shape. This layout distributes the forces the sail is exposed to optimally and helps maintain the shape of the sail. The panels that make up the radial layout are carefully arranged to follow the load pattern, ensuring a strong and stable sail.
    Upwind sails in a trioptimal layout are typically made from a laminate cloth, that is a sandwich cloth constructed of more layers. However, you will find a few trioptimal designs in a woven polyester cloth, and most nylon downwind sails are designed in a trioptimal cut.
  • EPEX
    The unique and patented EPEX membrane technology is the flagship of Elvstrøm Sails. A 100 % custom design where every single yarn is placed according to a load path design, computer calculated to the individual sailing preference. This enables the absolute optimal distribution of fibers over the entire sail resulting in an outstanding shape stability and performance.
    A broad range of materials and fibers are available to meet every need. The components are bonded under extreme and constant vacuum that evacuates all air, holds the membrane in place, and compresses the membrane components.

Explore our sails

Explore our sails
What kind of sail are you looking for?
What layout are you interested in?
See different material combinations

Fathead - Film/Film, Aramid

The EPEX layout, with optimum fiber distribution allows us to build a stable and efficient Square Top. An optimum designed square head provides easy trimming and control. When the wind increases, the top of the sail will twist, and the result is a flatter sail. In light wind the extra area gives the boat more power. The square head mainsail has full battens, which in addition to making the sail stable when sailing also makes the sail pack itself when lowering it in to your zippack.

Material

The film/film is a light-weight high-performing membrane.  The aramid fiber is a strong and light fiber, that comes in either black or gold.  

 

Performance - Durability - Price

Performance, durability and price indicators are illustrated for each material combination on a scale from 1-10, 10 being the highest.

 

Other Mainsails

If the above product example is not what you are looking for, check out all the other mainsails in this layout in our KOONAA, Multihull segment.

  • Conventional Main - short battens
  • Conventional Main - full battens
  • In-Mast Furling Main - no battens
  • In-Mast Furling Main - short battens
  • EMS Main
  • EMS Max Main
  • EMS FatFurl Main
  • In-Boom Furling Main
  • Conventional Main - short battens

    Conventional Main - short battens

    Sail Type
    The conventional mainsail with short battens still has full top batten. Having shorter battens in the lower parts of the sail makes the trimming and depowering easier. Short battens also make the sail weigh less and is normally the preferred choice for racing. Short battens also mean less chafe against the rig and spreaders when sailing downwind, so it should be considered if you plan to cross the oceans and sail downwind for long distances.

    The sail can be delivered with slides or luff rope, reefs and all other necessary options, for instance: trim stripes, sail numbers, cunningham, over-head leech line, loose foot and sail bag.

    Layout
    Available in cross-cut, trioptimal and EPEX.

    When to use
    The conventional mainsail with short battens can be used in all weather conditions – upwind and downwind. For heavy wind conditions the sail area can be reduced by reefing.
  • Conventional Main - full battens

    Conventional Main - full battens

    Sail Type
    The horizontal full battens in the conventional mainsail help keep the shape of the sail, and when lowering the sail, it practically packs itself into the lazy jack or zippack. As the sail is easy to use and stable, it is a favorite sail for many cruisers.

    The sail can be delivered with slides or luff rope, reefs and all other necessary options, for instance: trim stripes, sail numbers, cunningham, over-head leech line, loose foot and sail bag.

    Layout
    Available in cross-cut, trioptimal and EPEX.

    When to use
    The conventional mainsail with full battens can be used in all weather conditions – upwind and downwind. For heavy wind conditions the sail area can be reduced by reefing.
  • In-Mast Furling Main - no battens

    In-Mast Furling Main - no battens

    Sail Type
    This is the simplest in mast furling mainsail. Cost effective and solid are the most important features. It is possible to furl into all furling masts, also the ones with a narrow opening.

    Normal options to include are clew block, clew UV cover, reefing marks and sail bag. Sail number, trim stripes and other options are also available.

    Layout
    Available in cross-cut, trioptimal and EPEX.

    When to use
    The in-mast furling mainsail with no battens can be used in all weather conditions – upwind and downwind. For heavy wind conditions the sail area can be reduced by furling in the sail partly.
  • In-Mast Furling Main - short battens

    In-Mast Furling Main - short battens

    Sail Type
    This in-mast furling mainsail with short battens can be built with a straight leech which gives a larger and more efficient sail than without the battens.

    Normally this sail will also fit into all masts, also the ones with narrow opening, as the battens are flat. It is a cost effective and solid sail. Normal options to include are clew block, clew UV cover, reefing marks and sail bag. Sail number, trim stripes and other options are also available.

    Layout
    Available in cross-cut, trioptimal and EPEX

    When to use
    The in-mast furling mainsail with short battens can be used in all weather conditions – upwind and downwind. For heavy wind conditions the sail area can be reduced by furling in the sail partly.
  • EMS Main

    EMS Main

    Sail Type
    The EMS is an in-mast furling mainsail with full continuous vertical battens. The continuous vertical battens with carbon top provide support for the leech, whether the sail is fully deployed or reefed. The battens are also to be used as reefing points, stretching the reefed luff and making the sail flat and efficient.

    Normal options to include are clew block, clew UV cover, reefing marks and sail bag. Sail number, trim stripes and other options are also available.

    Layout
    Available in cross-cut, trioptimal and EPEX

    When to use
    The EMS can be used in all weather conditions – upwind and downwind. For heavy wind conditions the sail area can be reduced by furling in the sail partly.
  • EMS Max Main

    EMS Max Main

    Sail Type
    The EMS max sail is the cruising in mast furling mainsail that also win races. The sail area can be designed as a conventional mainsail, but with several extra features.

    The continuous vertical battens with carbon top provide optimal support for the leech, whether the sail is fully deployed or reefed. The short intermediate battens have the same function. The full battens are also to be used as reefing points, stretching the reefed luff and making the sail flat and efficient.

    Normal options to include are clew block, clew UV cover, reefing marks and sail bag. Sail number, trim stripes and other options are also available.

    Layout
    Available in trioptimal and EPEX

    When to use
    The EMS Max can be used in all weather conditions – upwind and downwind. For heavy wind conditions the sail area can be reduced by furling in the sail partly.
  • EMS FatFurl Main

    EMS FatFurl Main

    Sail Type
    The FatFurl in mast furling mainsail, only available at Elvstrøm Sails, is specially designed with optimum shape and maximum sail area for all modern High-Performance Cruisers.

    The FatFurl is larger than a conventional horizontally battened mainsail.

    The continuous vertical battens with carbon top provide maximum support for the leech, whether the sail is fully deployed or reefed. The full battens are also to be used as reefing points, stretching the reefed luff and making the sail flat and efficient. The short intermediate battens have the same function. The EPEX layout ensures an optimum fiber distribution and a strong and stable sail.

    Normal options to include are clew block, clew UV cover, reefing marks and sail bag. Sail number, trimstripes and other options are also available.

    Layout
    Available in EPEX

    When to use
    The FatFurl in mast furling mainsail can be used in all weather conditions – upwind and downwind. For heavy wind conditions the sail area can be reduced by furling in the sail partly.
  • In-Boom Furling Main

    In-Boom Furling Main

    Sail Type
    The in-boom furling mainsail is custom made for all furling boom types.

    The horizontal full battens help keep the shape and ensure that the furling into the boom runs without problems. The lowest battens are also working as reefing point as they stretch out the reefed down mainsail.

    Normal options to include are top UV cover, reefing marks, sail bag, sail number, trim stripes, and other options are also available.

    Layout
    Available in crosscut, trioptimal and EPEX.

    When to use
    The in-boom furling mainsail can be used in all weather conditions – upwind and downwind. For heavy wind conditions the sail area can be reduced by furling the sail partly in to the boom.

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