that would be my question. What is your process as far as using them and washing them.
I was just at Ranney's shop the other day and picked up a crap load more towels. I have some Waffle Weave's going on over a year and they still pick up water as if they were brand new.
Don't wash them with junk towels such as one's you would clean the engine and door jams with etc . . . .
Don't use fabric softeners in either the wash or dryer.
I personally pre soak mine, wash them and hang dry. I never dry my microfibers in the dryer as the heat will over time destroy them.