eVent Fabrics

 

eVent fabrics get their unique properties from a proprietary and patented waterproof membrane. It is pretty amazing how breathable membrane fabrics work. Typically the membrane is made of PTFE, which is essentially plumbers tape. The PTFE has lots of microscopic holes all over it. These holes are sized so that the larger water molecules from the outside cannot get through but the smaller sweat gas molecules from the inside can escape. The PTFE membrane itself works very well but unfortunately it is very fragile and can be easily clogged by oils and skin particles. Therefore the PTFE must be protected and most membrane manufacturers simply laminate a thin layer of polyurethane over the top. While this gives the PTFE the protection it needs to hold up to regular use it takes away a lot of the membranes breathability. What makes eVent so unique is that they figured out a way to coat the individual fibers of PTFE with polyurethane so that the PTFE is protected but still has open pores so that it can breathe. eVent call this Direct Venting^TM Technology. eVent fabrics simply let the sweat out.^TM The result is the most breathable membrane fabric on the market and one that is currently rocking the outdoor industry.

You may be asking why we are so concerned about breathability when our gear is typically used in cold conditions. Surely warmth and waterproofness is more important that breathability? While waterproof is very important it is not hard to find materials that are waterproof. If that is all we were concerned with then we would make garments out of trash sacks. However if we did that then the wearer would quickly soak themselves in their own sweat. Your body naturally sweats as a way of regulating body temperatures and during intensive sports such as snowmobiling your body can produce up to half a gallon of sweat per hour. This sweat needs a way to leave the body as quickly as possible; Direct Venting^TM Technology from eVent fabrics is the best possible fabric for this.

"...without doubt eVent is the most breathable membrane"
- Outdoor magazine, Germany

"eVent fabric is the most breathable waterproof material we've ever worn."
- Backpacker magazine, USA

"The three-layer eVent fabric was the most breathable on test."
- Country Walking magazine, UK