Fabric: XTP600D ripstop polyester PU coated. Waterproof, hardwearing, protection in wet and muddy conditions, ticks and loose scree. Elasticaled calfband for comfort fit, adjustable neoprene straps for underfoot, velcro secure stormflap, nylon drawcord top for added protection and heavy duty hook and buckle. Ideal for hill-walking in extreme conditions