NRS Mack's Ear Seals Surfer's ear and swimmer's ear are genuine occupational hazards for paddlers who spend serious time on the water, and Mack's Ear Seals offer a comfortable, doctor-recommended solution that requires no fitting or custom moulding. The dual durometer design uses two plastics in a single moulding process, creating super-soft outer seal rings that sit comfortably in the ear canal alongside a stiffer inner core that makes insertion and removal easy even with cold, wet hands. The pre-moulded flanged design means no sizing or custom fitting is required, just insert and paddle. A detachable cord attaches to your helmet or PFD so the plugs stay with you on the water and don't end up at the bottom of the river after a wet exit. A shatterproof carrying case keeps them protected and easy to find in a gear bag or PFD pocket. Pre-moulded flanged design, no fitting or sizing required Dual durometer construction for comfort and ease of insertion Doctor recommended for preventing swimmer's ear and surfer's ear Detachable cord for helmet or PFD attachment Shatterproof carrying case included Suitable for kayaking, rafting, surfing, swimming, and snorkelling