To stay dry and comfortable when wearing waterproof pants, they also need to be breathable. Breathable fabric is permeable to tiny water vapour molecules allowing perspiration to escape while keeping the rain out. Breathability is a measure of a material's ability to release body moisture. It is measured in g / m2 / 24h, ie the amount of liquid, measured in grams, a square meter of fabric can release in a day. When choosing waterproof pants you need to keep in mind how you will use them and how active you want to be in them. For extra ventilation during high-intensity activities, also look for ventilation zippers on the outside of the pants to allow for more efficient airflow. Our rain guide will outline breathable waterproof pants and common features to help you choose what pants and jackets from our range that’s right for you.