S code - weight 70 pounds - 90 pounds waist 1 foot 7-2 feet

M code - weight 90 pounds - 105 pounds waist circumference 1 feet 9-2 feet 2
L code --- weight 105 - to 115 pounds waist circumference 2 feet to 2 feet 3
  XL ---- weight 113 pounds -135 pounds waist two 2 feet 2 to 2 feet 5