ichidan verb, intransitive verb
become sweat-stained; get sweat stains
Describes fabric or clothing that becomes stained or discolored by sweat.
白いシャツが汗染みて黄ばんでしまった。
The white shirt got sweat-stained and turned yellow.
この帽子は汗染みやすいから気をつけて。
This hat gets sweat stains easily, so be careful.