Before getting into drying towels, what is your wash procedure? The use of a drying towel can do more damage if not properly executed.
I have some threads
<<HERE>> for you to peruse if you would like, starting with
JP's GT Tech Introduction to Detailing 101.
When using a drying towel, it is paramount that you use a detailing spray or drying aid to help with lubricating the surface.
Microfiber is your best bet. Gone are the days of chamois or rag towels.
1. Microfiber for auto detailing are a combination of polyester and polyamide. The polyester gives the towel strength, the polyamide gives it absorbency. Automotive quality towels will be constructed of 70% polyester/30% polyamide.
2. Next the GSM (grams/sq meter) gives a measure of the weight of the towel or density of how many fibers. Generally 350 GSM for cleaning, 500 GSM for waxing, 600 GSM for waterless/rinceless washes and 1000 GSM for drying. Included in that will also be the "pile" or length of the fibers. A drying towel should have a thick pile. Inversely, a glass towel will have a very low pile. Also consider the size of the towel, a large towel can cover larger areas before becoming saturated and requiring a good wringing.
In short, A high pile 1000 GSM 70/30 microfiber towel.
I also have this post in my
JP's GT How to properly wash your car on drying technique