ISOFLEX - Active stretch fabric - 89% polyester, 11% elastane Durable water repellent finish Part elasticated waist 2 zipped side pockets. The Pentre Stretch trousers from Regatta are perfect for outdoor adventure. The women's hiking trousers come with a water-repellent finish making them ideal in changeable weather. Available in short, regular and long lengths. Style may vary. Water repellent with active stretch, our Pentre Stretch women's trousers are perfect for outdoor adventure. The natural stretch on the women's hiking trousers will keep you moving. There's a water-repellent finish that makes them ideal in changeable weather. The part-elasticated waist moves with you. Available in short, regular and long lengths.