Gray and Kate Size Chart
| Zippys and Two Piece Sets | height in inches | weight in pounds |
| Newborn | 18"-22" | 6-11 lbs |
| 0-3 months | 21"-25" | 11-15 lbs |
| 3-6 months | 24"-27" | 15-18 lbs |
| 6-12 months | 26"-30" | 18-22 lbs |
| 12-18 months | 29"-32" | 22-26 lbs |
| 18-24 months | 31"-34" | 26-30 lbs |
| 2T | 33"-36" | 30-32 lbs |
| 3T | 36"-39" | 32-35 lbs |
| 4T | 38"-41 | 35-39 lbs |
| 5T | 42"-46" | 39-43 lbs |
| 6-7 | 46"-48" | 43-55 lbs |