Don't worry about spreading germs! these towels are the most sanitary we care, thanks to an antimicrobial treatment which kills bacteria on contact. While It’s still recommended these towels be washed after use, they do stay sanitary throughout an entire game or practice, no matter what surface they come into contact with. After 50 washes, you will want to treat these as a normal towel and wash them with bleach in order to keep them sanitary. Because the towel is white, it is very easy to tell.