When using microfiber wash mitts: use light colors for the top of the vehicle and dark colors for the bottom. This serves as a reminder to change to a different mitt when you get to the heavier, most abrasive dirt at the bottom.
We have four colors available here: https://www.autoobsessed.com/search?type=product&q=%22microfiber+chenille%22+AND+%22wash+mitt%22