These TWXpert Leatherette and Neoprene Work Knee Pads are contoured to fit your knees properly ensuring a comfortable fit and provide the perfect protection by removing any excess pressure on the knees. They are washable, durable, non-marking and easy to put on, adjust or take off with their incorporated tough hook and loop strap. Perfect for roofing, flooring, gardening or any task that requires you to spend prolonged periods of time on your knees.