My legs and feet are always cold and these fleece tights certainly keep them warm.  I gave them four stars because even though they fit properly in the beginning, they slid down as I moved around.  I wore them with fleece pants and every half-hour I had to tug them up to keep them from sagging in the the crotch, causing the pants crotch to ride low as well.  My tunic wasn't long enough to cover it.  Perhaps if I'd bought them one size larger they'd have stayed up.  Haven't decided if I'll buy another pair to test that.