At 5ft 10" and 165 pounds I ordered these in four sizes. face palm. The reviews suggested a size Small, but I found both the Small and Medium to be too small in the waist and legs. I almost thought it was a women's or youth size. Ordered size L and XL, can stay XL. The fabric is comfortable and light (I use it for running). If I hadn't liked the fabric and quality I wouldn't have put so much time and effort into finding the right fit.