Once the ventilation zipper is opened, fresh air can pass through the membrane thanks to the layered construction, without compromising waterproofness.
Necessary cooling Prevent yourself from overheating by opening the mesh panels on hot summer days. When ventilation is no longer needed, the panels can be quickly closed, off course with your gloves still on.
Adapt to the weather in seconds. By simply unzipping the collar-part, a large mesh panel is unvealed which will let wind enter your jacket freely. If the weather conditions suddenly change, the collar part can be mounted within seconds.