Originally Posted by
Polaris OBark
I do sometimes get contact dermatitis from mine, but I tend to get it from pretty much everything (like I can't wear my wedding ring, I get it from face masks, etc.)
Me too, but less as I age.
Originally Posted by
Carbonfiberboy
My wife and I have been using chest straps for decades, never had a skin problem. I wash them after every use during which we sweated - in the kitchen sink..
Yeah, it's not the strap, per se. Rather, it's probably some protein component of sweat or skin oil that triggers an immune reaction in susceptible people when it's trapped and concentrated under something. Either you get it or you don't, but anyone who doesn't wash rinse their strap is a pig!