1)  These run huge!  I am 5'5", 145 lbs and ordered a medium.  They were baggy all over, way way too big.  I returned them.
2)  In spite of their advertised "free, easy returns" policy on clothes, Amazon deducted over half of the purchase price from my refund.  I called CS and they made it right, after explaining Amazon doesn't want clothes returned because they don't fit.
3)  I ordered size small.  These fit  perfectly, but by the second wearing they developed pilling between the thighs, as described by other reviewers.  I'm not going to be wearing these for long..