This chart is a general chart each manufacturer sizing can vary.
| Size | Age | Weight | Height |
| Newborn | 0-3 Months | Up to 9 lbs | Up to 19" |
| 3 Months | 0-3 Months | Up to 12 lbs | Up to 23" |
| 6 Months | 3-6 Months | 13-15 lbs | 24-25" |
| 9 Months | 6-9 Months | 16-18 lbs | 26-27" |
| 12 Months | 9-12 Months | 19-21 lbs | 28-29" |
| 18 Months | 12-18 Months | 22-25 lbs | 29-31" |
| 24 Months | 18-24 months | 25-28 lbs | 33-34" |
| 2T | 2 Years | 25-28 lbs | 33-34" |
| 3T | 2-3 Years | 39-32 lbs | 35-36" |
| 4T | 3-4 Years | 33-36 lbs | 37-38" |
| 4 = GS | 4 Years | ||
| 5/6 = GM | 4 to 5 Years | ||
| 6x = GL | 5 to 6 Years | ||
| 7/8 = S | 6 to 7 Years | ||
| 10 = M | 8 to 9 Years | ||
| 12 = L | 10 to 11 Years | ||
| 14 = XL | 11 to 12 Years |
