Not all towels are created equal. Every domestically made towel is washed several times by the manufacturer to remove excess dye. Unfortunately, this leaves the towel looking limp and used. So, manufacturers then "size" the towel to make it look more attractive and new again. This "sizing" process uses a starch and silicone mixture that will scratch and contaminate your paint finish.
zymöl towels are not "sized".
Sold as 2 pack.