I use the Pack Towl ULTRALIGHT. 54 by 25, weighing just 3.4 ounces. Pricey but towels seem to live forever, if you don't lose them. Bigger than I need to dry except I also have long hair. I also take the Pack Towl washcloth, at 1.5 ounces. REI co op has these. The biggest problem is finding them...