Size Chart
  Alpha size Numeric size Height Chest Weight Hips
  XS 4/5 41-44.5" 23-24" 32-41 lbs. 23-24"
  S 6/7 46.5-48.5" 25-26" 42-59 lbs. 25-26"
  M 8/10 52-55.5" 27-27.5" 60-72 lbs. 28-29"
  L 12/14 58.5-62" 28.5-30" 73-99 lbs. 30.5-32"
  XL 16/18 64-66.5" 31-33.5" 100-125 lbs. 33.5-35.5"

Size chart is a general guide. It may include sizes that are unavailable for this item.