Cold water below 19°C triggers bone growth in your ear canal. UK rivers and seas sit well below this threshold year-round. Find out which earplugs protect cold water swimmers.
Discover when earplugs protect snorkellers from swimmer’s ear, which types are safe for duck diving, and how to keep your ears healthy on a snorkelling holiday.
Which earplugs stay in through an open water mass start, remove fast in T1, and protect against cold water ear damage in training? The complete triathlete’s guide.


