The Shokz OpenSwim headphones are a great waterproof solution with a secure fit
Shokz OpenSwim: SpecificationsPrice: $149 / £169 / AU$239Colors: Black, blueBattery life (rated): 8 hoursConnectivity: N/AStorage: 4GBDurability: IP68 waterproofWeight: 1.05 ouncesThe Shokz…