Mack's Ear Seals Ear Plugs - Mack's Ear Seals Ear Plugs are doctor recommended to help prevent swimmer's and surfer's ear. These pre-molded flanged earplugs feature a latex-free dual durometer design. The two plastics used in the molding process, creating a unique combination of super-soft seal rings for unmatched comfort and a stiffer inner core for ease of insertion. Ear Seals have an incredible noise-reduction rating of 27 decibels, the highest ever for a flanged earplug. The detachable cord is convenient for hanging plugs around your neck in environments where noise comes and goes. Quickly and easily remove the cord for water activities or sleeping. Ear Seals can be cleaned with mild soap and warm water, and used over and over again. Mack's Ear Seals Ear Plugs are perfect for kayaking, swimming, surfing, snorkeling, rafting, or any time you want to keep water out of your ear canal.