This is clothing I purchased many years ago. The mesh has become larger in some areas, but I haven't stretched it out. Occasionally, brown threads are woven into the white threads. This is not a stain, but was present when I purchased it. Please understand that this is a used item from several years ago. I've had a very difficult and unpleasant experience in the past with someone who was overly particular, so please refrain from purchasing if you are a detail-oriented or overly sensitive person.