eVent Fabric

Author: Adminstrator  

eVent Fabric Technology Overview An overview of eVent waterproof breathable fabric technology

eVent Technology

Sweating is a natural process — part of what you could call the natural air conditioning of the human body. When we exercise, our muscles produce heat.

eVent fabrics get their unique properties from a proprietary and patented waterproof membrane. Its unique composition allows millions of tiny pores to breathe at their full potential.


How Much Do We Sweat

Humans simply walking produce 0.25 to 0.5 liters of sweat per hour and up to 1.5 liters during strenuous activity. All this sweat has to move through your clothing system, your gloves, and your footwear.

eVent fabrics let sweat escape up to twice as fast as common waterproof membranes. When you sweat more than the fabric can handle, you will eventually soak in your own sweat — the same sweat that is trying to actually cool you down.

Worse, when you stop exercising, all that sweat inside your jacket, boots, and gloves makes you feel cold and miserable. This is what is referred to as “post-exercise chill.”

 

eVent Direct Venting Technology

eVent waterproof and eVent windproof use Direct Venting™ technology.

eVent Fabrics get their unique properties from a proprietary and patented waterproof membrane, Its unique composition allows millions of tiny pores to breathe at their full potential. Sweat vents directly to the outside of the fabric in one easy step. We call this Direct VentingTM Technology. Its genius is hidden in its simplicity. eVent Fabrics simply let the sweat outTM.

Wet Systems

Most common waterproof/breathable membranes do not literally “breathe.” Instead, they move sweat in two slow steps by a process of diffusion through a Polyurethane (PU) layer. Because a PU absorbs and retains sweat, the inside of the fabric becomes wet. Then, body heat begins to push that dampness through to the outside of the fabric where it can finally evaporate–a very inefficient process.

eVent Fabrics
Keep You in Your Dry Zone
 
eVent Fabrics keep you in the dry zone The body must stay at a homeostatic or steady state of temperature and therefore must find a way to cool itself. We balance our core temperature by sweating. Sweating essentially balances our body temperature by evaporative cooling.


Lab Tests Confirm It

Typical results of eVent fabrics
 
Water column  > 30 meters; waterproof at 192 km/h 
  Mullen Test
MVTR 15,000 - 25,000 g/m2/24 H 
  JIS L 1099 B2 desiccant inverted cup method
RET  3 - 5 
  JIS L 1099 B2 desiccant inverted cup method
*Test results for eVent waterproof fabric. Results may vary depending on the eVent product.