I initially purchased these for my husband in a large. That is typically what he wears in pajama bottoms. These arrived packaged nicely in good condition but were way too large for him. I returned them but he really liked them so I made the exchange for a size medium and kept my fingers crossed. The mediums fit perfectly. You may want to consider sizing down one size. I gave four stars simply because I had to go through the hassle of returning and reordering but my husband has been wearing them and says they are confortable and a nice weight for the summer months in Pennsylvania.