Yes. This is the question every swimmer asks first, and for good reason. The conical 2-lamellae design locks to your ear canal rather than sitting loosely inside it. Body heat causes the silicone to adapt to your exact canal shape within the first few minutes, forming a secure seal. Customers report zero slippage through butterfly sets, tumble turns, and open water swell. The tab gives you full control for easy removal without tugging.

Yes, when they seal properly. Swimmer’s ear (otitis externa) is caused by water sitting in the ear canal and breaking down the skin’s natural protection. Watersafe+ blocks water from entering the canal entirely. No water in means the bacteria in pool water and open water have no route to cause infection. Customers who switched to Watersafe+ after recurring infections consistently report zero ear infections from that point. If you’ve had recurring swimmer’s ear, getting the right size is essential. Use AR KI Tech if you’re unsure.

Yes. Watersafe+ is not designed to block all sound. The 2-lamellae silicone seals water out while still allowing approximately 24 dB of ambient sound through. In practice, you can hear your coach calling instructions from the poolside, whistles, and safety signals from kayakers in open water. What you lose is the underwater roar. What you keep is everything you actually need to hear.

Very likely yes. Cold water entering the ear canal triggers something called caloric vestibular stimulation — cold water hitting the eardrum disrupts the balance signals your inner ear sends to your brain, causing vertigo and disorientation during and after long swims. It’s a well-documented phenomenon in cold water and open water swimming. Blocking cold water from reaching the eardrum removes the trigger. Several of our customers discovered this was the cause of their post-swim dizziness only after Watersafe+ eliminated it entirely.

Watersafe+ is doctor-recommended for exactly this use case. If you have tympanostomy tubes (grommets), a perforated eardrum, or a post-surgical ear, water entering the canal is a serious risk. Watersafe+ forms a medical-grade silicone seal that keeps water out completely, making it safe for showering, bathing, and supervised swimming. Always confirm with your ENT or GP first, particularly in the early stages of recovery.

Place the earplug on the tip of your finger and gently twist it into your ear canal with a slight rotating motion. It should seal the canal fully without needing to be forced. Once inserted correctly, you’ll feel the ambient sound reduce slightly. The tab sits flush outside the canal for easy removal. For the best seal, make sure you have the right size. If the standard version doesn’t feel secure, the AR KI Tech measurement will get you the exact fit for your ear canal.

Nothing. You have 40 days to test them in the pool, in open water, in the shower. If they leak or you’re not satisfied for any reason, contact us and we’ll refund you in full. No questions, no forms, no back and forth. Over 1 million customers and +330 five-star reviews. But you don’t have to take our word for it.