Made from 100% Tulle Fabric. The back part has a zipper and is also elastic. It is a model that our girls can wear stylishly on weddings and special occasions. Dimensions: Since the back part is elastic, there is 2-3 cm of flexibility. 8-9 Years Old Underwear Length from Shoulder: 76 cm With Tulle: 113 cm Chest: 68 cm Waist: 68 cm 9-10 Years Underwear Dress Length From Shoulder: 78 cm With Tulle: 116 cm Chest: 72 cm Waist: 70 cm 10-11 Years Old Underwear Length from Shoulder: 81 cm With Tulle: 120 cm Chest: 74 cm Waist: 72 cm 11-12 Years Underwear Dress Length From Shoulder: 85 cm With Tulle: 122 cm Chest: 76 cm Waist: 74 cm 12-13 Years Old Underwear Length from Shoulder: 88 cm With Tulle: 125 cm Bust: 78 cm Waist: 76 cm