Hi there,
I have a FP2 and take it with me while running or doing other sports. Usually, I store it in my running belt, which is not waterproof or sweat resistant. as I don’t want to damage my phone, I wrap it it cling foil. Has anyone a better option? are there any additional phone covers out there that could do the job? added difficulty: preserved headphone use, and I can’t use bluetooth headphones.
You can find sealable plastic bags for SmartPhones etc. in Outdoor Stores - I can’t remember the brand but they work like zip locks. This won’t solve your headphone problem, though!