Our Michelle dress is an organic cotton plain weave fabric with square neckline, princess seams and pockets. The dress has two tiers and the hem ends before the ankle. The cotton is a warm white or ivory which is created by a whitening process using banana fibre pot ash. Margherita is 5'5 and wearing the M/L and Kiana is 5'6 and wearing the XS/S. For more sizing information visit our size guide here, and if you have questions let us know at info@abelwear.com