These are basketball bibs used by a girls' junior high school basketball team. They were used for about a year, but I've sold them because there are no noticeable stains or sweat odors. However, please be aware of this if you are particularly concerned about cleanliness. These pink bibs are made of breathable mesh material and feature a large number 4 on the back. - Color: Pink - Number: 4 - Material: Mesh Thank you for looking.