But I can't.

This summer is the first I am sailing with a rashie rather than a springsuit and it flaps like a $&^*()*^ in the wind and rubs my nippies red raw.
I thought rashies were supposed to stop rashes not cause them.

What's to go - is it just too loose? Stop the flapping fabric and stop the irritation will surely work. But then it would be ridiculously tight.

Does everyone else wear a rashie that is 2 sizes smaller than what you'd wear under a wetsuit or when surfing.......?