The one the army uses,for cold weather.
I have tried most all the high dollar suits to stay dry while washing and getting wet behind a rain suit in the winter isn't fun.In my search over the years to find something that wasn't heavy after being water logged after a days washing was a never ending search.Just think about it,army doesn't want their people wet and sick all time.Don't be dum like I was and spend hunderds of dollars looking and hopeing to stay dry stay dry the army way.