These are great comfy pants to lounge at home. Material is thin enough but doesn't feel cheap. I'm an adult and normally wear size Small. Bought these in Medium and they fit me perfectly! After seeing so many comments about pants shrinking after the wash, I was extremely careful doing it. Washed them in cold water and hung to dry. Result: NO SHRINKING whatsoever! I already washed the pants a number of times and they still fit the same. The only downside is that they stretch fairly quickly around the knee area.