| Infants, Toddlers, & Kids | ||||||||
| Size (approx) | Alpha | Height in Inches | Weight in lbs | Age | Chest in Inches | Waist in Inches | ||
| 0-3m | up to 22" | up to 11 lbs | 0-3 mos | |||||
| 3-6m | 22-25" | 11-15 lbs | 3-6 mos | |||||
| 6-9m | 25-27" | 15-18 lbs | 6-9 mos | |||||
| 9-12m | 27-29" | 18-22 lbs | 9-12 mos | |||||
| 12-18m | 27-31" | 18-26 lbs | 12-18 mos | |||||
| 18-24m | 29-33" | 22-29 lbs | 18-24 mos | |||||
| 2T | 31-34" | 26-29 lbs | 1-2 yrs | 20½" | 20" | |||
| 3T | 34-38" | 29-33 lbs | 2-3 yrs | 21" | 20½" | |||
| 4T | 38-42" | 33-37 lbs | 3-4 yrs | 22" | 21" | |||
| 5T | 42-45" | 37-53 lbs | 4-5 yrs | 23" | 21½" | |||
| 2 | XXS | 31-34" | 26-29 lbs | 1-2 yrs | 20½" | 20" | ||
| 3 | XXS | 34-38" | 29-33 lbs | 2-3 yrs | 21" | 20½" | ||
| 4 | XS | 38-42" | 33-37 lbs | 3-4 yrs | 22" | 21" | ||
| 5 | S | 42-45" | 37-43 lbs | 4-5 yrs | 23" | 21½" | ||
| 6 | S | 45-48" | 43-50 lbs | 5-6 yrs | 24" | 22" | ||
| 7 | M | 48-51" | 50-57 lbs | 6-7 yrs | 24¾" | 22½" | ||
| 8 | M | 51-54" | 57-67 lbs | 7-8 yrs | 27" | 23" | ||
| 10 | L | 54-57" | 67-75 lbs | 8-9 yrs | 28½" | 24" | ||
| 12 | L | 57-60" | 75-85 lbs | 9-10 yrs | 30" | 25" | ||
| 14 | XL | 60-62" | 85-93 lbs | 10-12 yrs | 31" | 26" | ||
| 16 | XL | 62-64" | 93-100 lbs | 12-14 yrs | 32" | 28" | ||