Isbjörn RAIN, our rain pants / simpler shell pants are designed with a 2-layer durable material. The trousers are wind and waterproof and have a membrane on the inside of the outer fabric that ventilates excess heat when the child is active. All seams are taped to be completely waterproof. The rain pants easily fit in the backpack and are perfect for a trip when you do not know what the weather has to offer, or for training after school. The high ventilation in the garment means that the trousers not only fit well on rainy and humid days but are as comfortable as protection from wind alone, even at slightly warmer temperatures. 15000 water pillar and Permeability 15.000gr - This will keep your child dry, and sweat-free through activities regardless of the weather.