Very snug fit but comfortable.
These fit more like thermals/long johns than joggers.
True to size at the waist but not loose anywhere other than a couple of inches above the ankle cuff. I may not wear them outside as I'll look like a male ballet dancer, but they're super comfortable.
PS This is a 3 star review but when I got to review stage, it shows it as 4.5, no idea why that is.