Ridiculously comfortable pants...I hope the fabric wears well. I'll update the review if I notice any pilling or wear in a short time. According to the size charts I was between a medium and large. Amazon suggested I choose medium, but based on other reviews and possible shrinking, I ordered the large. They look like a relaxed fit - the medium would have fit but more snugly - but these do not look so large that they are sloppy or shapeless, just a fuller more "straight leg" look. I may order another pair in medium for comparison. I would say they are a medium weight fleecy feeling material that is warm, deliciously soft on the inside, and not see through. The tag says 60 cotton / 40 polyester made in Pakistan, and I got the navy heather color. From the reviews, it sounds like there may be variation in size between colors and maybe just overall trial and error on sizing. I washed in cool and only tumble dried for about 5 minutes, then hung to dry the rest of the way. I was concerned about the length and forgot to measure before washing, but after washing they measure 41" from top of waistband to bottom, and 31" from inseam to bottom. Waistband is stretchy without being constricting. --Update: For those debating between sizes...I ordered a charcoal gray in Medium, which is what Amazon had recommended based on previous purchases. The medium fits good and does look more "put together" than the large for out of the house errands. Length is shorter at 29". Hard to say if that is because of the size difference, or because I chose a different color. It may be because these were made in Vietnam while the blue was made elsewhere - it may be that different locations have different sizing. I wear both sizes, but will go with the recommended (medium) size if they get more colors back in stock and I reorder. Still no pilling, still super cozy. Update #2 - a year later and these pants are going strong, some slight pilling on the legs but not major. I do wish they were a bit longer. I took a chance and ordered the men's version of these pants in the same (medium) size and they fit almost the same - the waistband has a heavier weight elastic (slight con) but the waist tie is on the inside (pro) and the inseam is 30 1/2" long... an inch and a half longer than the women's version (huge pro, depending on your height).