Our pieces are cut with a little extra room to grow — they fit comfortably over cloth diapers. Between two sizes? Choose the bigger one. And if it doesn't fit, size exchanges are free within 14 days.

Baby

Size	Weight (kg)	Height (cm)
Preemie	up to 2.3	up to 43
Newborn (NB)	up to 3.6	up to 51
0–3 M	3.6 – 5.4	51 – 61
3–6 M	5.4 – 7.3	61 – 66
6–9 M	7.3 – 9.1	66 – 71
9–12 M	9.1 – 10.9	71 – 76
12–18 M	10.9 – 11.8	76 – 81
18–24 M	11.8 – 12.7	81 – 91

Toddler & Kids

Size	Weight (kg)	Height (cm)
2 Y	11.8 – 12.7	81 – 91
3 Y	13.2 – 15.9	91 – 99
4 Y	16.3 – 18.1	99 – 107
6 Y	20.4 – 22.7	114 – 122

Size ranges such as 2–3 Y or 4–5 Y cover both ages in the table. 18–24 M has more diaper room than 2 Y.

Hats

Size	Head circumference (cm)
Newborn	up to 30
NB – 3 M	30 – 36
3 – 6 M	36 – 43
6 – 12 M	43 – 48
12 – 24 M	48 – 53

Our long johns and pajamas are designed to fit close to the body. For a relaxed fit, size up.