Sustainable Sails

4T FORTE™ are the first “green sails”

The OneSails group has a shared passion for sailing and the sea. Respect for the environment keeps us focused on how we can continually improve the sustainability of our sails.

Our commitment to reducing the carbon footprint of our sails is centred on the materials and what happens to a sail at the end of its life. In 2015, OneSails launched 4T FORTE ™ sails and sail recycling process. Awarded ISO 14040 Life Cycle Assessment Certification, 4T FORTE ™ are the only fully recyclable sails on the market today.

The glues, resins and solvents used in the sail making process have been replaced by heat fusion, and the base polymer is 100% recyclable in a standard waste separation process.


Sails made of 4T FORTE are produced with a low level of CO2 emissions and without the use of pollutants such as glues, resins and solvents.


At the end of their useful life, these sails are recycled within the normal recovery processes of polyethylene-based raw materials to generate the PE pellet.


The polyethylene pellet is used for the production of accessories (such as headboards) to be used in the production of new sails..


We strongly believe in sustainability. Our commitment is concrete and certified according to: ISO 14021:2021 and ISO 14001:2015 by independent auditors (IQNet).

Integrated Solar Panel Technology, taking sustainability one step further.

OneSails can deliver 4T FORTE™ main sails with integrated thin cell PV panels, which regenerate the yacht’s batteries using solar energy.

Due to the high modulus construction of the 4T FORTE™ composite material, the impact of the PV panels is minimal in terms of the sail’s characteristics and performance.

For example, the Spirit 44CR(e) is a fully electric yacht designed and built by Spirit Yachts. To fit with the owner’s brief of ‘near total self-sufficiency’, OneSails worked closely with Spirit Yachts and Solar Cloth to integrate solar panels into the 4T FORTE recyclable mainsail. The three panels on each side of the sail have the capacity to regenerate 560watts, or 1,120watts total for both sides of the sail. Solar panel technology is always improving and OneSails is continually testing and developing new solutions.

Waarom voor Onesails kiezen

1. Exclusieve technologie.
Al meer dan 10 jaar werkt het OneSails ontwerp team aan exclusieve technologieën waar one-piece zeilen met doorlopende garen mee worden gemaakt. Voor Cruising en Wedstrijd boten.

2. Performance.
Laminate zonder delimantie, licht gewicht en vormvastheid presteren veel beter dan traditionele gesneden panel zeilen.

3. Kwailiteit.
M3™ en 4T FORTE™ membranen worden exclusief in Europa gemaakt. Door onze producten in de speciaal voor deze technologie ontworpen fabriek te produceren is de kwaliteit gewaarborgd.

4. Ontwerp.
De beste zeilvormen zijn een resultaat van de continue analyse en ervaring. Onesails is een van de leiders in de zeilindustrie. De continue investering in R&D zorgt er voor dat wij de beste zeilvormen hebben. Het succes van deze aanpak is te zien in de vele overwinning van Onesails klanten bij Nationale-, Europese- en Wereldkampioenschappen.

5. Service.
Een kern activiteit van elke OneSails loft is het aanbieden van service en ondersteuning. Onderdeel van onze toegewijde service is dat in elke loft experts aanwezig zijn die u kunnen helpen met het maken van de juiste keuzes en het leveren van de beste service. Het uitgebreide netwerk groeit snel met zeilmakers op alle centrale plekken langs de oceanen.

OneSails Sails Repair