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Size Chart

Up to 5 lbs (previously preemie) Newborn 0-3m 3-6m 6-9m 9-12m
Weight (lbs) Upt to 5 lbs 5-9 9-12 12-16 16-20 20-24
Length (inch) Upt to 17 Upt to 18 18-23 23-26 26-28 28-32
Average age - NB - 4 weeks  4 - 8 weeks 8 - 20 weeks 20 - 36 weeks  36 - 48 weeks
0-3m 3-6m 6-9m 9-12m 12-18m 18-24m 1T 2T 3T 4T 5T 6T
Weight (lbs) 9-12 12-16 16-20 20-24 24-27 27-30 24-27 27-30 30-35 36-40 40-46 46-53
Length (inch) 18-23 23-26 26-28 28-32 29-31 31-33 29-33 33-36 36-39 39-42 42-45 45-48
Average age 4 - 8 weeks 8 - 20 weeks 20 - 36 weeks 36 - 48 weeks 1 year - 1 1/2 year 1 1/2 year - 2 years 1 - 2 years 2 - 3 years 2 - 4 years 4 - 5 years 5 - 6 years 6 - 7 years