These are gaiters from OUTDOOR RESEARCH. The material is waterproof and breathable, with a ripstop construction that is durable, lightweight, and easy to fold for storage. They are fully openable with Velcro, so you can put them on and take them off while wearing your shoes. The upper part is secured with a nylon belt and a one-touch buckle for easy adjustment, and the belt will not loosen after adjustment. The lower part is secured with a fiber-reinforced nylon belt, triple-stitched to the main fabric, providing a sense of security that, unlike cheaper gaiters, they can still be used for a while even if the stitching comes undone. Size M is suitable for shoe sizes 22.5 cm to 25 cm. Upper width (flat): 23 cm Lower width (flat): 20 cm Length: 40 cm