Even if water in your ears isn't a problem for you, the ear plugs can prevent vertigo associated with swimming swells in open water and also help reduce heat loss through your head.

Unlike industrial flanged earplugs originally designed to seal out noise (then sold for water protection as a secondary market), Mack’s® AquaBlock® were designed and tested specifically to seal out water from the start. Mack’s® AquaBlock® pre-molded flanges earplugs are constructed of silicone and designed for super soft, super comfortable, waterproof protection…

• Unique Flex Stem™ and triple flange design allow for a more customized fit, which increases sealing ability and improves wearer comfort,
• Pre-molded silicone will not deteriorate like similar earplugs made of plastic,
• Helps prevent swimmer’s ear and surfer’ ear,
• Washable and reusable for extended wear,
• Shatterproof carrying case included.