Nike Swim Ear Plugs help prevent swimmer's ear, earaches and other conditions resulting from water entering your ears. Great for both competitive and casual swimmers, the swimming ear plugs are made from soft rubber for comfort, and they have a double flange design that provides a water-tight seal. A carrying case is included to store them hygienically in your gym bag or backpack. DOUBLE FLANGE provides a tight seal against leaking SOFT RUBBER molds to your ear FLARED END maintains proper ear plug placement Case included