When choosing jeans, as a rule, there are only 3 values:

• waist circumference (W): circumference of the most narrow body part;
• Trouser leg length (L): length from crotch to floor on inner leg side;
• hips circumference (H): volume of the widest hips part, provided that legs are put together.

• Highrise: this rise is of high waist giving the long legs effect.
  
  Belt for such jeans is unnecessary;
• Regularrise: this is just that rise that would be suitable for any figure;
• Medium rise: distance from navel to edge: from 1 (cm) to 2 (cm );
• Lowrise: such rise overestimates the requirements for your waist and will not suit everyone. A more youthful option also requires perfectly matched underwear.

Important: more information on the main brand sizes is available at links below.