Shell jackets are suitable for all types of activities, whether you go out on a hike in harsh weather or take a walk in town when it is drizzling. They are waterproof, windproof  and breathable while also being flexible and comfortable to move in. The versatility of the shell jacket depends on its technical membrane which helps let moisture through the material. It also makes the shell jacket perfect to use regardless of season and activity - everything from summer walks in the rain to skiing in the mountains. You regulate the warmth with what you wear under the shell jacket. In the summer it is enough to use a t-shirt, but in the winter we recommend that you dress according to the layer-on-layer principle with both base and mid layers to keep warm.