RELAXED FIT: Our most generous pants fit, relaxed through the hip, thigh, and leg for comfort while sleeping. Sits at the waist.LIGHTWEIGHT JERSEY: Super-soft lightweight jersey fabric.STYLING: These lightweight and cozy knit pajama pants will keep you comfortable all night long.DETAILS: Features an elastic waistband with drawstring, and a button-front fly closure.INSEAM: 30 1/2" with 8 1/2" leg opening on US size M.