I first order 2 of these in black to wear under my jeans in the Colorado winter. Loved it, it's soft, it washes well, the seams don't get twisted on your legs, fit me comfortably. That said I decided to order 2 more in frost. Together with the long sleeve shirt that matches also in frost they became my pjs. When you sleep hems don't roll up your leg like regular flannel pants, that's annoying. Very comfortable. Great purchase!