I bought some of their 300 gm in the multi color and they are pretty thin. Then I bought the yellow 330 gm(whatever they are) and use them for removing polish and rinse less wash and they seem to work good for that. I bought some of there 660 blue towels in a 3 pack and not to fond of them. They are like 2 towels sewn together, when I use them with detail spray they leave the fibers all over the car like they are shedding, looks like cat hair on my car when I am done. Those towels I now use for a final wipe after waxing since they are super soft.
My go to towel is CG blue towel(550 gm) for quick detailing and removing wax.
Dean. :inspector: