Sizing Guide

👧 Lulu Wellington Girls Size Guide

For girls sizes 2T to 10

Size	Age Range	Height	Weight
2T	2 years	33–35 in	27–30 lbs
3T	3 years	35–38 in	30–33 lbs
4T	4 years	38–41 in	33–36 lbs
5	5 years	41–44 in	36–42 lbs
6	6 years	44–47 in	42–48 lbs
6X	6–7 years	47–48.5 in	48–53 lbs
7	7 years	48.5–51 in	53–58 lbs
8	8 years	51–53.5 in	58–67 lbs
10	9–10 years	53.5–56 in	67–75 lbs

🎀 Note: Our sizing runs true to standard boutique fit. When in doubt, we recommend sizing up for extra wear time.

For boys from Newborn to 7 years

Size	Age Range	Height	Weight
NB	0 months	Up to 21 in	Up to 9 lbs
0–3M	0–3 months	21–24 in	9–12.5 lbs
3–6M	3–6 months	24–26.5 in	12.5–17 lbs
6–9M	6–9 months	26.5–28.5 in	17–21 lbs
9–12M	9–12 months	28.5–30.5 in	21–25 lbs
12–18M	12–18 months	30.5–32.5 in	25–28 lbs
18–24M	18–24 months	32.5–34.5 in	28–30 lbs
2T	2 years	33–35 in	27–30 lbs
3T	3 years	35–38 in	30–33 lbs
4T	4 years	38–41 in	33–36 lbs
5	5 years	41–44 in	36–42 lbs
6	6 years	44–47 in	42–48 lbs
7	6–7 years	47–51 in	48–55 lbs

🧼 Tip: Our boys' styles are designed to be soft, durable, and easy to move in — from tummy time to tag games.

For babies from Newborn to 24 months

Size	Age Range	Height	Weight
NB	0 months	Up to 21 in	Up to 9 lbs
0–3M	0–3 months	21–24 in	9–12.5 lbs
3–6M	3–6 months	24–26.5 in	12.5–17 lbs
6–9M	6–9 months	26.5–28.5 in	17–21 lbs
9–12M	9–12 months	28.5–30.5 in	21–25 lbs
12–18M	12–18 months	30.5–32.5 in	25–28 lbs
18–24M	18–24 months	32.5–34.5 in	28–30 lbs