I LOVE these lounge pants and they are of great quality cotton blend (not flannel or micro fleece). They did not shrink in the wash like most cotton item do. I ordered a medium and they have a great fit and very comfortable. I also ordered a pair of Bottoms Out micro fleece in black that were stretchy but this pair does not have the stretchability of the micro fleece.  I am not sure why these lounge pants received a negative review from others.