[guidopallemans]

I used to have this problem as well, so I talked it over at my endo office. They suggested that I order some specially shaped stickers to keep them on, but instead I just bought some Kinesiology Tape (hansaplast, but also exists store-brand). 10cm of that works perfectly, even for heavy contact sports combined with sweating (and many showers).

[mapkkk]

Just make sure you cut a small circle from the tape overlying the breather hole of the sensor - that hole serves to let moisture buildup from underneath the sensor escape.

[csours]

Yup, I tried this. I sweat A LOT

[crimsontech]

I tried different tapes, Kinesiology tape didn’t stick for me but Hypafix did, I can’t get this stuff off without soaking it.

If you ever want to give it another go, try Hypafix. I tore my skin the first time and quickly learned to soak it and use soap to remove the GCM.