This is a stretchy A line shaped skirt designed to fit closely through the waist and hips, flaring out gently to the hem line.  

Waist

(unstretched)

Waist

(full stretch)

Hip Length
S (8) 62cm 75cm 92cm 46cm
M (10) 70cm 85cm 98cm 49cm
L (12) 75cm 90cm 104cm 51cm
XL (14) 80cm 95cm 114cm 53cm