High temps are super hard on stretch fabrics though, so if you go that route be prepared to replace your sports bras often.

I don't get those stains since I stopped using anti-perspirant. It made me smell worse anyhow. I use the crystal deodorant now. No smell, no stains.

My white bras turn grey eventually too, but it's because there's a bit of iron in my well water. Not much to do about it, other than dark bras.