As a guide please use the following measurements below. Keep in mind every child is unique so please use this guide with caution. 

We recommend if you normally buy 4T you buy 4-5 years old. Some of our clothes are made to be loose fit and some a tighter fit. 

We also have some European sizing that is cut generously so please keep that in mind as well.

SIZE GUIDE 

Age Height (in) Weight (lb) Chest (in) Waist (in) Hip (in) Inseam (in)
Newborn 20" 8lb 9" 16" 23" 9"
0-3m 24.5" 10lb 9" 18" 23.5" 9"
3-6m 27" 13lb 9.5" 19" 24.5" 10"
6-9m 31.5" 17.5lb 10" 19.5" 25" 11.5"
9-12m 33" 20lb 10.5" 20" 25.5" 12"
12-18m 34" 22lb 10.5" 20.5" 26" 12.5"
18-24m 36" 26.5lb 11.5" 21" 27" 13.5"
2-3y 38.5" 12" 22" 34" 15.5"
3-4y 41" 13" 23" 34.5" 16"
4-5y 43.5" 13.5" 23.5" 35" 17"
5-6y 45.5" 14" 24.5" 36" 18"
6-7y 58" 14.5" 25" 37" 19.5"

 

 

SWIMWEAR 

Age Height (in) Weight (lb) Chest (in) Trunk (in)
0-3m 18-24" up to 14.5lb up to 17" up to 24"
3-6m 24-27" 10-18lb 17-18" 24-26.5"
6-12m 24.5-30.5" 15-25lb 18-19" 26.5-29"
12-18m 29.5 -33" 22.5-28lb 19-19.75" 29-31"
18-24m 33-35.5" 28-30lb 19.75-20.5" 31-33.75"
2-3y 33-35" 27-30lb 20.5" 33"
3-4y 35-38" 30-34lb 21" 33.5"
4-5y 38-41" 34-38lb 22" 38"
5-6y 41-44" 38-43lb 23" 40.5"
6-7y 44-47" 43-48lb 24" 42.5"