High-water Mark

"The nettles and docks were rank-smelling and heavy with dew. One was hampered by Sunday clothes. They tucked their skirts inside their bloomers and waded through.
'It's a good thing,' said Rachel, 'that we've got black stockings that don't show the wet. Brown are the limit! People can see a high-water mark.'"

From Elizabeth Bowen's short story, "The Jungle", 1929. Read here.