Size charts Bodysuit Sizing Chart: 0-3 months 7 to 12 lbs. 8 in. wide by 14 in. long 3-6 months 12 to 16 lbs. 8 1/2 in. wide by 15 in. long 6-12 months 16 to 20 lbs. 9 in. wide by 16 in. long 12-18 months 21 to 24 lbs. 9 1/2 in. wide by 18 in. long 18-24 months 25 to 27 lbs. 10 1/2 in. wide by 18 7/8 in. long Leggings Sizing: (measure from the waist to ankle)0-3 months11 1/2 in. long3-6 months12.5 in. long6-9 months14.5 in. long9-12 months16.5 in. long12-18 months18 in. long18-24 months19.5 in. long