To be sure you are ordering the right size we suggest you refer to these general sizing charts. Measure your child's height, in Inches, and refer to the column "age" in the charts below.
Blue Floral Smock and Bloomer
Smocked top and pique bloomer set. Top is 97% cotton with 3% spandex. That little bit of spandex keeps everything crisp without losing softness. Bloomer is 100% cotton. Sizes 6m-24m.