MF = Micro Fiber. Its a super great towel. Now that you know what MF stands for it will be eaiser to look up information on them. MF towels are really good for drying, buffing, and general towel use. They are soft so they won't swirl your paint. Every detailer should experience the MF towels.
Autopia-approved microfibers for paint use are: Magic/Miracle towels from www.yosteve.com (best pricing) or www.properautocare.com (forum sponsor) and also the microfibers from www.neatitems.com . Search the forum to get more information on either of these.