These Karrimor Sierra Pants are ideal for the outdoors, using waterproof and breathable Weathertite fabric to help them stay cool and dry when conditions turn unpleasant. These lightweight pants also feature an elastic waistband, ankle zippers, and snaps Adjustable ankle cuffs. WeatherTite technology. Breathable 5000mm . Lightweight . Windproof. Elastic waistband . Shell: 100% Nylon, Lining: 100% Polyester . Machine washable. Keep Away From Fire. Imported. . NOTE: This product is sold in U.S. sizes. While the physical product may display both the U.S. & U.K. sizes on it, please place your order using the U.S. size.