eVent fabric for down sleeping bags
eVent is a waterproof and highly breathable fabric. It is also completely air-permeable, making it ideal for use in sleeping bags.
Modern technologies have produced numerous fabrics that can be called waterproof and breathable, but only one came into consideration for our crux sleeping bags – eVent. We started using eVent back in the late ‘90s (before it was even launched and while we were still working for another major outdoor brand) and were immediate converts. The breathability of eVent is far superior to any other waterproof/breathable fabric, regardless of the technology used (i.e. membrane or coating).
What is unique about eVent is that it is air-permeable. This means that the air can be pushed through it – important for sleeping bags when stuffing them away. But the fabric itself is still completely windproof.
We use a two-layer construction that comprises the outer face fabric and the eVent membrane. The face fabric we use is not only the lightest and most breathable eVent fabric available, but it is also remarkably soft. This means that, unlike most lightweight waterproof fabrics used in sleeping bags, it does not rustle. It is very quiet to sleep in.
For more information on eVent fabrics, please click here.
