DownWool hybrid insulation

DownWool Hybrid – the extra-warm insulation for arctic temperatures

Unlike DownWool® insulation, the DownWool hybrid construction is not a material mix, but a layered construction.

What does layered construction mean?

In DownWool hybrid insulation, down and wool are used separately in different chambers. Only 100% goose down is used in the chambers closest to the body. An additional layer of alpine wool is placed over these chambers. This way, the excellent insulating down is encased in a layer of alpine wool.

This unique construction is used in the Grüezi bag® winter and expedition sleeping bags, which are designed for comfort temperatures well below freezing.

Why layered construction?

The great advantage of this construction is that the moisture generated in the sleeping bag does not condense and freeze on the outer material or drip into the down underneath, as is usually the case, but is absorbed by the alpine wool and released into the cold ambient air.

Why is DownWool hybrid the better down?

When down gets damp (e.g., through condensation, sweating, or humid air), the fine branching of the down collapses, the down clumps together, and the insulating capacity decreases significantly.

The wool layer prevents this:

• Wool naturally keeps the down drier and fluffier, thus preserving the insulating effect of the down.
• It thus ensures effective regulation of moisture and body temperature.
• Wool absorbs moisture and releases it gradually to the outside. This regulation allows for a warming or cooling effect and creates a dry, comfortable body climate.
• Even when damp, it retains its warming properties, which no other material can do.

The result is outstanding and unique insulation, where the down remains dry and fluffy, so that it retains its excellent insulating properties even at extremely low temperatures well below -15 °C.