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.
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…