A kilt should fit comfortably through the hips, allowing the fabric to hang naturally without pulling, bunching, or excessive tightness. The aprons should lie flat across the front, while the pleats at the back should fall evenly and move freely. A proper fit through the hips allows for full range of motion when walking or sitting, without restricting movement or distorting the shape of the kilt. If the fit is too tight, it can affect both comfort and appearance, while too loose can cause the kilt to shift out of position.