This baby military clothing set Details as below: 3T-4T is suitable for 95-100 cm baby ( 37.40-39.37 inch) 2T-3T is suitable for 90-95 cm baby ( 35.42-37.40 inch) 18-24M is suitable for 85-90 cm baby ( 33.46-35.43 inch) 12-18M is suitable for 80-85 cm baby ( 31.50-33.46inch ) 6-12M is suitable for 70-80 cm baby ( 27.56-31.50 inch )