What is Sympatex Allweather membrane?
Sympatex is a durable windproof and waterproof membrane with excellent breathability made of recyclable PFAS-free Polyether and Polyester.
How Does Sympatex AllWeather membrane work?
The Sympatex membrane is a compact porous membrane that functions based on a physical and chemical principle. The membrane is hydrophilic, meaning the cavities of the membrane are the openings between its molecules. The membrane expands as it gets hot, just like any other material, and then the openings between the molecules also become larger. This means that the material breathes better the warmer the environment, and the hydrophilic water-attracting part of the membrane absorbs the moisture from the body and releases it to the outside through evaporation.
The Sympatex membrane has no pores that can be clogged by oil, fat or salt from your sweat. The transport of water vapor away from your body takes place at the molecular level.
We use the Sympatex membrane in our waterproof boots. The characteristics of the membrane ensure that the feet stay comfortably dry and warm regardless of the weather, activity and ground conditions.
Sympatex membrane is made from recyclable polyester, which is classed as harmless to skin and the environment.