Gripgrab aquarepel leg warmersgripgrabs aquarepel leg warmers have exceptional water repellent properties with the same insulating effect as their classic leg warmers the top of the leg warmers have silicone elastic grippers to ensure they stay in place while the bottom of the warmers have a second gripper so you can position them over waterproof overshoes in order to prevent wet feet protects knees shins there is an additional windproof membrane on the front panel to protect knees and shins