The Flax 27 represents a significant milestone in sustainable yacht design, emerging as one of the first commercially available performance daysailers constructed almost entirely from renewable raw materials. Designed by the renowned naval architecture firm Judel/Vrolijk & Co, the vessel was developed by the German shipyard Greenboats with the specific intent of proving that eco-friendly materials can match the structural integrity and finish of traditional glass-reinforced plastic (GRP). The hull and deck are composed of flax fibers—derived from the linseed plant—and a bio-based epoxy resin, often utilizing a sandwich core of cork or recycled PET. This approach results in a carbon footprint roughly 80% lower than standard fiberglass construction. Since its introduction, the model has garnered international acclaim, including the prestigious Ocean Tribute Award at Boot Düsseldorf, positioning it as a boutique choice for sailors who prioritize environmental ethics alongside modern performance.
Flax 27 Information, Review, Specs

- Make
- Flax
- Model
- 27
- Builder
- GreenBoats
- Designer
- judel/vrolijk
- Number Built
- Production Year(s)
- 2019 - ??
Sailing Performance & Handling
The Flax 27 is characterized by its light displacement and a modern, easily driven hull form that reflects its Judel/Vrolijk pedigree. Weighing approximately 1,350 kg (2,976 lbs) with a substantial ballast ratio, the boat is designed to be stiff and responsive, behaving more like a modern sportboat than a heavy cruiser. Its high Sail Area-to-Displacement ratio (SA/Disp), fueled by a powerful square-top mainsail and a retractable carbon bowsprit for asymmetrical spinnakers, allows it to excel in light-to-medium air.
Handling is optimized for short-handed sailing, featuring a clean deck layout with lines led aft to the cockpit. According to editorial reviews by Yachting World, the natural fiber composite provides inherent dampening qualities, which can result in a quieter motion through the water compared to the "drum-like" resonance of some stiff carbon or fiberglass hulls. The deep T-bulb keel and high-aspect spade rudder ensure precise tracking and immediate response to helm inputs, making it an ideal platform for club racing or spirited coastal daysailing.
Interior Comfort & Variations
While primarily a daysailer, the Flax 27 offers a minimalist yet functional cabin that highlights the aesthetic beauty of its construction. The interior is a showcase of "naked" flax fibers, which provide a warm, organic brown hue that contrasts sharply with the clinical white of traditional yachts. The layout typically features two longitudinal settee berths and a V-berth forward, suitable for occasional overnighting or storing sails.
The cabin environment is intentionally sparse to save weight and maintain the vessel's performance profile. Headroom is limited, as is common in the 27-foot daysailer category, but the use of natural materials and sustainable fabrics creates a unique, high-end atmosphere. Greenboats has also applied these construction techniques to larger custom projects, such as the Flax 33, which offers expanded living quarters and more sophisticated systems for those requiring greater coastal autonomy.
Popular Mentions & Media
The Flax 27 has become a "poster child" for the circular economy within the maritime industry. Beyond its Ocean Tribute Award, it has been featured extensively by Bcomp, a leader in natural fiber reinforcement technologies, as a primary case study for the viability of flax in marine environments. The boat’s development was also highlighted in technical segments by various European sailing outlets during its debut at the Cannes Yachting Festival, where it was noted for its "yacht-standard" finish, dispelling myths that bio-composites require a rustic or unrefined appearance.
Known Issues & Buyer’s Checklist
As a niche, low-volume production vessel using unconventional materials, prospective buyers should focus on the following technical areas:
- Bio-Resin Longevity: Early bio-resins were occasionally more sensitive to UV degradation and moisture absorption than high-end vinylesters. Verify that the gelcoat or paint finish is intact and that there are no signs of "wicking" at through-hull fittings where flax fibers might be exposed to standing water.
- Cork Core Integrity: While cork is an excellent sustainable core material with high impact resistance, ensure there is no delamination in high-stress areas like the chainplate attachments or the mast step.
- Rigging Tension: Given the boat’s performance orientation, the standing rigging is often high-tension. Check for any spider-cracking in the deck laminate near the shrouds, though the dampening properties of flax generally minimize these issues.
- Hardware Bedding: Because flax fibers are organic, any water ingress into the laminate is more problematic than in inorganic fiberglass. A thorough inspection of the bedding of all deck hardware (winches, cleats, tracks) is essential.
Community & Resources
Due to its boutique nature, there is no large-scale "owner's association" in the traditional sense. However, technical support and a community of sustainable sailing advocates are centered around the manufacturer, Greenboats, and their network of material partners. Owners often engage through high-end sustainability forums and regattas that emphasize innovation and eco-friendly maritime technology.
The Verdict
The Flax 27 is a "statement" vessel that successfully bridges the gap between environmental activism and high-performance sailing.
Pros:
- Sustainability: Exceptional eco-credentials with a significantly reduced carbon footprint.
- Aesthetics: Stunning natural-fiber finish that stands out in any marina.
- Performance: Judel/Vrolijk design ensures it is genuinely fast and rewarding to helm.
- Dampening: Natural fibers provide a quieter, more comfortable ride in a seaway.
Cons:
- Price: Premium pricing compared to mass-produced fiberglass 27-footers.
- Niche Market: Potential for slower resale due to the specialized nature of the construction.
- Interior Space: Minimalist cabin is strictly for daysailing or very basic weekending.
Measurements
Construction & Hull
- Construction Material
- Other
- Hull Type
- Monohull Sailboat
- Keel Type
- Bulb
- Rudder
- 1x Spade
- Ballast
- 771 lbs (Lead)
- Displacement
- 2755 lbs
- Water Capacity
- -
- Fuel Capacity
- -
Dimensions
- Length Overall (LOA)
- 26.9 ft
- Waterline Length (LWL)
- 22.64 ft
- Beam
- 7.38 ft
- Draft
- 4.59 ft
- Max Headroom
- -
- Air Draft
- 35.1 ft
Rig & Sails
- Rig Type
- Fractional Sloop
- P (Main Luff)
- 30.18 ft
- E (Main Foot)
- 11.61 ft
- I (Foretriangle Height)
- 28.02 ft
- J (Foretriangle Base)
- 8.6 ft
- Forestay Length (est)
- 29.31 ft
- Sail Area
- 328.3 sqft
Calculations
- Sail Area / Displacement (SA/D) Ratio
- 26.73
- Ballast / Displacement Ratio
- 27.99
- Displacement / Length Ratio (D/L) Ratio
- 105.98
- Comfort Ratio
- 12.42
- Capsize Screening Formula
- 2.11
- Hull Speed
- 6.38 kn