The bikinis are all sewn in Liberty of London fabrics, it is a very fine cotton poplin and very pleasant to the touch as soft as silk. The advantage is that the fabric dries very quickly. Thanks to its flexible elastic it adapts perfectly to the child's body and can be worn with a diaper up to 12/18 months. The fact that they are unique sizes, allows a saving for moms who can use it several summers. These little swimsuits are unique handmade pieces!