Sydney 38 Racing Mainsail

Whether you’re racing inshore, offshore, or somewhere in between, Kraken offers a range of high-performance sail materials tailored to your boat, program, and budget.From durable tri-radial laminates to next-gen custom membranes, each material offers a different balance of performance, weight, and durability.Not sure what “Carbon” or “Technora” really means for your sail? No problem — we explain it all in plain language.Scroll down for our full materials guide — including examples, and tips on selecting the right sail for your sailing style.

Variations in fuff ropes, batten cars and sliders, reef non-friction rings or cringles, cunningham and reef luff attachment points are all accounted for and covered in the price.

$7,500.00$15,994.00

Materials – Your Guide to Choosing the Right Sail

Whether you’re racing inshore or heading offshore, your boat deserves sails tailored to your program. This guide walks you through the different sail materials, finishes, and construction types available — so you can make an informed choice based on performance, durability, and value.

We’ve picked the usual suspects for most campaigns, and of course if you’d like to make changes you can.

Material NameBest UseKey FeaturesBase PriceRacing LifespanPerformanceInshore/Offshore

Dimension-Polyant Black Film PX 20

(Black Glossy Appearance)

Competitive inshore racing where weight matters mostClear film for crisp, responsive sail with minimal stretch. Sleek black aesthetic, no added abrasion layer for pure performance.$★★★★Inshore

Dimension-Polyant LiteSkin PX 20

(Mottled Grey Matte Appearance)

Club racing or light offshore useLiteSkin adds lightweight surface protection without major weight gain. A smart middle ground between Film and Taffeta.$$★★★★★Inshore & Light Offshore

Dimension-Polyant Black Taffeta PX 20

(Black cloth, not quite matte, not glossy)

Offshore or high-wear coastal racingTaffeta layer offers superior abrasion and UV protection. Slightly heavier but much longer lifespan, ideal for serious offshore racers.$$★★★★★Offshore

Dimension-Polyant Carbon-Sport LiteSkin 20

(Mottled Grey Matte Appearance)

Inshore/coastal racers wanting better shape-holding. Carbon internals instead of the polyester for the PX range.Carbon internals reduce stretch and improve responsiveness. LiteSkin finish keeps things light and race-ready.$$$★★★★★★★Inshore & Performance Offshore

♻️Challenge Palma-Tec 24 ♻️

(Very lights grey with internal dark grey strands)

Tough offshore work with a green focus.  A blend of polyester and dyneema internals all post-consumer wasteHeavier base cloth with a track record of reliability. Great for delivery sails, long passages, or when durability outweighs weight.$$$★★★★★★★Offshore

Kraken Apex Shadow – Carbon Technora + LiteSkin

(Your choice Matte Black, Grey, White)

Offshore racers wanting custom membrane performanceFiber layout engineered for your rig and reef points, using Carbon and Technora. LiteSkin adds abrasion and UV resistance without compromising weight.$$$$★★★★★★★★★Offshore

Kraken Apex Phantom – Carbon + Clear Film

(Your Choice of Clear Film, or opaque gloss black)

Elite inshore racers chasing every tenth of a knotCrystal-clear film over custom-laid carbon fibers for maximum efficiency. Featherweight, ultra-fast, designed for performance purists.$$$$★★★★★★★Inshore

A Quick Primer on Sail Materials

Woven Sails (Dacron)

You won’t find standard Dacron mainsails on this list — and there’s a reason. For the same price point, we can offer you a high-performance laminate sail that will outperform a Dacron in racing applications. Dacron is tough, but it stretches over time and struggles to hold its shape under load — which is critical in race performance. We do love Dacron, but not in this application.

Laminate Sails

Laminates are made by bonding multiple layers of materials together, forming a “sandwich” that places strength along key load paths. Instead of relying on woven fibers, laminates use layers of film and reinforcing materials — such as polyester, aramid (e.g., Kevlar), carbon, or Dyneema — to resist stretch and optimize performance.

These laminates are purchased from the industry leaders like Dimension-Polyant and Challenge, and then laser cut, and then sewn into panels.  It’s a traditional sail type with a modern material.

Key Traits:

  • Internal Fibres: Provide strength along load paths. These may look like black or gold threads depending on the fiber type.
  • Facing Fabric: Affects the look and surface durability of the sail. You might see a shiny film, a textured LiteSkin, or a woven taffeta.
  • Construction: Laminates are typically cut into tri-radial panels, aligning the strongest parts of the material with the forces acting on the sail.

You won’t often find us providing laminates in exotic internal materials like Aramids or Carbons, because we can offer better performance, tailored strength placement, and the same pricing in a Kraken Apex membrane.

Membrane Sails

The most advanced sail construction available today, membranes are engineered from the ground up for your specific boat and how you sail it.

Instead of cutting and sewing standard panels, we use a high-precision lamination process that prints threads (fibers) directly onto a facing fabric. These fibers include Carbon, Aramid, Dyneema, or Vectran, in custom blends that account for both full hoist and reefed conditions.

What makes membranes better?

  • Load Path Engineering: Fibers are laid precisely where they’re needed — not all over the sail. This means lighter weight without compromising strength.
  • Fully Custom Build: We consider your reefing points, sail shape, and where your boat takes stress.
  • Choice of Facing Fabric: Pick a finish (film, LiteSkin, or taffeta) that suits your racing program and durability needs.

Compared to a laminate, a membrane has no wasted weight, and is much more refined in how it delivers strength and stretch resistance. It’s the gold standard for performance racing sails — and no longer just for grand prix programs.

Facing Fabric Options (Outer Layers)

These affect the durability, UV protection, abrasion resistance, and look of your sail. Each option can be combined with various internals (carbon, aramid, etc.).

Film

  • Best for: Inshore racing
  • Pros: Ultralight, crisp, responsive
  • Cons: Not abrasion-resistant
  • Appearance: Transparent or shiny film finish

Choose film if you want maximum performance and minimal weight — and don’t need to worry about chafing or long-term UV exposure.

LiteSkin

  • Best for: Inshore or light offshore use
  • Pros: Lightweight, more durable than film, abrasion-resistant, UV protection
  • Cons: Slight weight penalty over film
  • Appearance: Mottled texture, available in grey, white, or black

LiteSkin is made from a non-woven array of nylon filaments, laminated into a composite facing. It protects against scuffing and sunlight while remaining flexible and light. It doesn’t shrink like films and holds up better when the sail is folded or flogged. You might consider LiteSkin sails when racing with an experienced crew offshore who take care of equipment.

Taffeta

  • Best for: Offshore racing or high-mileage programs
  • Pros: Extremely durable, UV protection, resistant to chafe, crease, and wear
  • Cons: Heaviest facing option
  • Appearance: Woven fabric, available in black, grey, or white

Taffeta is a woven polyester fabric that’s laminated onto the sail’s surface to protect it from the elements. It won’t add shape-holding power, but it greatly extends the lifespan of your membrane or laminate sail. Taffeta is the go-to choice for offshore mainsails where durability matters most.

What’s Inside – Internal Fibers

The “engine room” of the sail. This is what gives the sail its ability to hold shape under load.

  • Polyester: Budget-friendly, decent stretch resistance, typically found in entry-level sails.
  • Aramid (Kevlar/Technora): High-performance, very low stretch, great for weight-sensitive applications.
  • Carbon: Extremely low stretch, very stiff, ideal for performance racing — but brittle if over-flogged.
  • Dyneema/Spectra: Strong and highly durable, but less stiff than carbon or aramid — often used in combo with others.
  • Vectran: Good UV resistance and low creep, usually used in specialty builds.

At Kraken, we don’t expect you to choose the internal fiber type yourself — we’ll recommend the right mix based on your race goals, reefing setup, and budget.

Battens

For heavier-duty and offshore mainsails, we always recommend full-length battens. They offer:

  • Better shape retention
  • Less flogging damage
  • Smoother furling or flaking

If you’d prefer partial (leech) battens for inshore racing or lighter sails, we can accommodate that — just let us know during the design phase.

Fitting and Finishing – What’s Included

Every mainsail comes with:

  • Cunninghams
  • Battens (full or leech, depending on your choice)
  • Tell tails
  • Sail numbers
  • Draft stripes
  • Colour-matched sail bag

Colour Matching:
All reinforcement patches (luff, leech, foot, reef reinforcements) will be colour-matched to your facing fabric — black sails get black corners, white sails get white, etc. It’s subtle, sleek, and professional.

Cut Style – How the Sail Is Constructed

  • Tri-Radial Cut: Standard for all our laminate sails. Panels are shaped and aligned with load paths for optimal performance.
  • Cross-Cut Sails: Only available on request for simple delivery or cruising sails. Get in touch via our Online Quote page for custom recommendations.

Why 2 Reefs?

Many booms only accommodate two reefs. But that doesn’t mean you can’t optimise your setup:

  • For bay racing: Two shallow reefs for depowering without dragging around weight up high in the sail.
  • For offshore use: Set up a 1.5 and 3rd reef to meet Special Regs and sail safely in big breeze.

Every Kraken mainsail is custom-built, so reef height, shape, and spacing is entirely up to you. If you prefer to run 3 reefs we can absolutely set that up for you.

Still Have Questions?

We know sail materials can be overwhelming — especially when people throw around words like “carbon” or “aramid” without explaining what they really mean, or being clear whether they’re talking about a top end membrane or a regular radial cut laminate. Kraken Sails is here to make the complex simple. If you’re unsure which sail is right for your Sydney 38, get in touch for a no-pressure chat. We’ll walk you through the options and build something that suits your boat, your racing, and your budget.

Fittings And Finishing

 

Fitting and Finishing – What’s Included

Every mainsail comes with;

  • Ultrabond Glued and Stitched Seams
  • Cunninghams
  • Battens (full or leech, depending on your choice with industry leading rocket tensioners)
  • Tell tails/woollys
  • Sail numbers & Insignia
  • Draft stripes
  • Sail bag

We will check in with you to make sure that all the things you need to be compatible are handled in the design, from fitting dog bones to the reefs, to the side you dress your cunningham, to ensuring that headboard and clue widths will accomodate the current hardware. 

Colour Matching:
All reinforcement patches (luff, leech, foot, reef reinforcements) will be colour-matched to your facing fabric — black sails get black corners, white sails get white. It’s subtle, sleek, and professional.

If you have a preference on sail number and draft stripe colours please just let us know.

Why 2 Reefs?

Many booms only accommodate two reefs. But that doesn’t mean you can’t optimise your setup:

  • For bay racing: Two shallow reefs for depowering without dragging around weight up high in the sail.
  • For offshore use: Set up a 1.5 and 3rd reef to meet Special Regs and sail safely in big breeze.

Every Kraken mainsail is custom-built, so reef height, shape, and spacing is entirely up to you. If you prefer to run 3 reefs we can absolutely set that up for you. Don’t worry about reef heights, that’s handled during the design stage. 

Battens

For heavier-duty and offshore mainsails, we always recommend full-length battens. They offer:

  • Better shape retention
  • Less flogging damage
  • Smoother furling or flaking

If you’d prefer partial (leech) battens for inshore racing or lighter sails, we can accommodate that — just let us know during the design phase.

Still Have Questions?

We know sail materials can be overwhelming — especially when people throw around words like “carbon” or “aramid” without explaining what they really mean, or being clear whether they’re talking about a top end membrane or a regular radial cut laminate.

Kraken Sails is here to make the complex simple. If you’re unsure which sail is right for your program, get in touch for a no-pressure chat. We’ll walk you through the options and build something that suits your boat, your racing, and your budget.

Build Time & Delivery

8 – 10 Weeks for a Laminate
10-12 Weeks for a Membrane

Workflow

Every sail starts with a design chat and a measure to ensure we’re building you want you expect, and what you need.

Once we receive your measurements, we’ll send you a 50% invoice, build your 3D rig model and design your sail.

When design is finalised, we’ll move your sail into production and send you the invoice for the balance which is due before we begin manufacturing.

From Measurements, design takes 1 week for Laminate sails, and 2 weeks for Membranes (to map fibre design).

Laminate sails take 4 weeks for an average build, (can be expedited for an additional charge).

Membrane sails take a 6 weeks, because they take time to cure, however we can expedite to 5 weeks.

Finally, QA takes 3 days, and then shipping via FedEx typically takes 3-10 days, depending on where you are in the world.