The simplist thing is to wear the appropriate weight of kilt.
My heavy "horse blanket" wool kilt would need a cyclone to lift it at the back. If it's not windy I wear a lighter kilt.

Just like it is when wearing trousers, we pick the garment to suit the weather.
The only trouble is is that kilts are more expensive to build up a wardrobe of.
But what price do we put on freedom?