These pajamas are snug fitting in order to meet the safety standards for children’s sleepwear set by the Consumer Product Safety Commission.

 Age Estimate/Size Height Weight Chest Waist
12-18M 30" - 31" 23 - 25 lbs. 19" - 20" 19." -  20"
18-24M 31" - 33" 25 - 27 lbs. 20" - 21" 20 - 20.5"
2T 33" - 35" 27 - 30 lbs.  21"  20.5"
3T 35" - 38" 30 - 33 lbs. 22" 21"
4T 38" - 42" 33 - 38 lbs. 23" 21.5"
5/6 24" - 48" 38 - 49 lbs. 24 - 25" 22 - 22.5"
7/8 48 - 54" 49 - 67 lbs. 25.5 - 25" 22.5 - 24"
9/10 54 - 57" 67 - 73 lbs. 27 - 28" 24 - 25"
10/12 57 - 59" 74 - 87 lbs. 28 - 30.5" 25 - 25.5"