The EcoConcept version is the latest version of our new range of KF V3 furlers equipped with our patented composite cranted wheel. On this version, we replaced the carbon fiber of the cranted wheel with linen fibers. We use biobased linen plastics and we use a molded stainless steel fork that is stronger, more durable and uses less raw material in its manufacture. The principle of EcoConcept by Karver will gradually be applied to other products in our range. It means that we have succeeded in significantly reducing the environmental impact of the product. It only applies to 2 other conditions: No loss of performance (or functionality) and no price increase. Using an EcoConcept by Karver product is just one more advantage and it is up to you to make this version the most popular.