If I have the choice, I use a lower mesh count for fleece and If I should get unlucky enough to have to print a process print on them, I use a lower lpi. The reason I say if I have a choice is that I have this one group that orders 600 or 700 tshirts twice a year and usually it's a sim process job but I don't care if it's 100 degrees outside, they always want a couple of hoodies with the same print. Needless to say, the print on the hoodies never look as good because the art is usually printed at 65 lpi.