Chafing is SOOO bad! I can get chafing when I am in SIngapore when it's hot and sweaty and I walk. Once it was so bad I had abraded the skin right off and it was bleeding, hot and swollen in two patches between my legs.

You find it hard to walk, sit, go to the toilet and it really hurts.

I think the main thing is to wear something that allows dampness to dry or wicks it away. Therefore cotton, demin etc are NOT great things to do exercise it.

Cycling shorts fabric allows the dampness to evaporate and the pad wicks away as well as padding.

Bruised sit bones I can live with, but chafing, it's no fun!