Fjallraven says about the Karl Pro Hydratic Trousers
Windproof and waterproof version of popular Karl Pro Trousers. Made from durable G-1000 Silent and lined with Hydratic that stops water getting in at the same time as it ventilates out moisture. Technical cut with pre-shaped fit over the rear and knees for the best possible freedom of movement. A total of eight pockets with room for everything you need close at hand; two hand pockets, two back pockets with flaps and buttons, a leg pocket with a zipper on the left leg and one with a flap and an inside phone pocket. There is also a small pocket for a multitool. The trousers have regular fit and a mid waist. Raw-length leg endings so you can adjust them to suit your height perfectly.