Harkila Ragnar TrousersThe Harkila Ragnar trousers are made from 96% nylon and 4% spandex, making them supple and stretchable. The trousers are DWR (Durable Water Repellent) treated which makes them dirt and water repellent as the water pearls up on the surface of the fabric and drips off or evaporates instead of soaking in. The trousers have ventilation zips on the back of the thighs and on the legs, and the vents have netting to prevent anything undesirable making its way