Harkila Pro HWS gaiters are made from very hardwearing canvas, that has been DWR-treated, to make it dirt- and water-repellent. The insides feature our own windproof and waterproof HWS® Härkila Weather System membrane, which is very breathable and has a hydrostatic head of 20,000 mm. These gaiters have strong velcro closures, with press stud reinforcements at top and bottom. At the bottom rear, they have strong elastic sewn-in as well as an elastic drawstring at the top, to fit snugly around your foot and calf as you walk. They also have a hardwearing rubber strap that runs under the boot and a hidden hook to attach to your laces to stop them sliding up.