The Nexlite Flex trousers are so lightweight and free moving, you might keep them on when the rain stops. Water resistant to 20,000mm, breathable at 25,000g/m2 – and now with 15% additional stretch. the Water repellent even after numerous washes and material is free from environmentally harmful perfluorooctanoic acid (PFOA). Fitted with elasticated waist Runbird on thigh Lightweight with 15% more stretch Water resistant to 20,000mm 2 year waterproof warranty