La membrana ecologica eVent BIO

The study of new technologies for companies in the Outdoor sector never stops and they are all focused on giving their best in terms of performance and commitment to sustainable production.

eVent® Fabrics, a company specializing in the production of waterproof and breathable membranes, looks to the future of the planet. They have leveraged over 20 years of experience in all-weather protection to create the next generation of waterproof and windproof clothing to provide optimal performance and protection for any activity. eVent BIO is born.

What is eVentBIO?

eVent BIO uses highly renewable, intelligently sourced castor seeds to create a lightweight, durable and flexible membrane that offers protection from wind, rain and snow in a highly breathable laminate.

They use recycled outer fabrics and backings paired with C0 DWR technology to create a 100% PFC-free waterproof and windproof fabric technology.

From castor to all-season protection

Our bio-based membrane is derived from castor beans, a renewable crop that does not cause deforestation and does not compete with food crops. The castor plants are grown in collaboration with the Pragati Initiative, promoting sustainable agricultural practices in India.

The Pragati Initiative uses good agricultural practices to increase the yield and income of farmers on land that normally cannot support other crops. Castor is an extremely drought-tolerant crop that grows well in arid climates, making it a highly profitable crop for farmers who provide multiple harvests in a single year. Find out more about the Pragati initiative here

Once harvested, the castor beans are crushed to produce castor oil, which is then processed into Arkema's Pebax® Rnew® polymer. This polymer is made up of up to 97% renewable carbon and offers a wide range of flexibility and durometer. The company processes this polymer to create eVent BIO, a recyclable membrane that is resistant to water, wind, chemicals and UV rays, creating an easy transition to sustainable materials in any product line.

Not only is it sustainable, but it works the way you want it to. eVent knows how important it is to stay dry and comfortable, which is why they have extensively tested eVent BIO in the laboratory to provide the best protection for all weather conditions.

Membrane Specifications:
Water column: > Waterproof up to 10 meters
MVTR: 20,000 g/m2/24H JIS L 1099 B2
(inverted cup method with desiccant)
Membrane weight: 25 g/m2
Minimum finished width: 150cm

The eVent BIO membrane is truly a great innovation in the field of technical clothing and shoes in the outdoor world. One of the companies we cover at BF Mountain, TOPO Athletic uses the eVent BIO membrane on their shoes, especially on the new Terraventure 4 WP!

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