Newborn/Infant/Toddler US Size Chart

Infant/Toddler US Size Chart
Chest Waist Hip Height Weight
12-18 MOS 20" 19.5" 20" 32" up to 24lbs
18-24 MOS 21.5" 21" 21.5" 34" up to 28lbs
M (3-4) 23" 22" 24" 40" up to 40lbs
L (4-6) 25" 24" 26" 48" up to 55lbs

Infant/Toddler- International Size Chart

Chest Waist Hip Height Weight
12-18 MOS 50.8 49.5 50.8 81.3 up to 10.9kg
18-24 MOS 21.5" 53.3 21.5" 86.4 up to 12.7kg
M(3-4) 58.4 55.9 61 101.6 up to 25kg
L (4-6) 63.5 61 66 121.9 up to 25kg