Hi, This is a sizing chart for infant and toddler sizes, up to 5 years.If you use this chart please take the time to rate it for helpfulness,its only takes a second!Thanks in advance and have a great day!

GAP SIZE CHART

Preemie
Age/size Weight Length
preemie up to 5lbs up to 14"

Newborn/Infant

Age/size               Weight                 Length
up to 3mos           7-12lbs               17"-23" 
3-6 mos               12-17lbs              23"-27"
6-9mos                17-22lbs              27"-29"
9-12mos              17-22lbs              27"-29"
12-18mos            22-27lbs              29"-31"
18-24mos            27-30lbs              31"-33"

Toddler
Age/size                 Weight               Length
12-18mos              22-27lbs            29-31"
18-24mos              27-30lbs            31"-33"
2yrs                        30-33lbs            33"-36"
3yrs                        33-36lbs            36"-39"
4yrs                        36-40lbs            39"-42"
5yrs                        40-46lbs            42"-45"

Hats

Hat Size Inches
XS-S 19"
S-M 20"
M-L 21"

mittens & gloves

Age/size Length Size
12-24mos 5" XS-S
2-3 yrs 53/4" S-M
4-5 yrs 61/2" M-L