sizeapprox inseamavg height avg weightavg age
0-6 mo 1 3/4" 18-26 in. 6-15 lbs. 0-6 months
6-18 mo 2" 26-34 in. 15-25 lbs. 6-18 months
18-24mo 2" 34-38 in. 25-30 lbs. 18 months - 2.5 years
3T-4T 2 1/2" 38-44 in. 30-40 lbs. 2.5-4 years
4T-5T 2 3/4" 40-44.5 in. 40-48 lbs. 4-5.5 years