We definitely recommend breathable and flexible softshell clothing (for example products from the Pallas series) as the main clothing for a hiking trip. Hiking is much more comfortable when the clothes allow your range of motion and allow body moisture to move out of the clothing. However, we do not recommend that you go on a long trip without waterproof clothing. Although the softshell material is mostly very weatherproof, they are not completely waterproof. In case of unexpected rain, you should have waterproof clothing with you so that you don't get wet and freeze.